AI Agent for Publishing: Automate Editorial Workflows, Content Distribution & Revenue Optimization

March 28, 2026 15 min read Publishing

The publishing industry processes over 4 million new titles annually worldwide, yet most editorial teams still evaluate manuscripts through manual reads, manage production schedules in spreadsheets, and price books using gut instinct. A single acquisitions editor at a mid-size house reviews 50-80 queries per week, spending an average of 12 minutes each on submissions that have a 2% acceptance rate. That is an enormous amount of expert time spent on filtering rather than curating.

AI agents for publishing go far beyond simple grammar checkers or keyword tools. They reason across interconnected systems: evaluating a manuscript's market potential against real-time BookScan data, optimizing production schedules with dependency-aware Gantt logic, tuning programmatic ad floors in real time, and predicting subscriber churn before it happens. Each of these capabilities compounds, creating a flywheel where better acquisition decisions lead to stronger catalogs, which drive higher ad yields and subscriber retention.

This guide covers six core areas where AI agents transform publishing operations, with production-ready Python code for each. Whether you run a 50-title indie press or a 500-title mid-size house, these patterns scale to your operation.

Table of Contents

1. Manuscript Evaluation & Acquisition

Traditional acquisitions rely on editors reading query letters, sample chapters, and full manuscripts sequentially. An AI agent can pre-score every incoming query against multiple dimensions simultaneously: genre fit relative to the imprint's catalog gaps, market comparables based on recent BookScan sell-through data, writing quality metrics derived from readability indices and prose style analysis, and even audience demand signals from search trends and social media conversation volume around specific subgenres.

Market trend analysis is where the agent delivers its highest leverage. By ingesting weekly BookScan point-of-sale data, the agent calculates genre velocity, the rate at which a particular category is growing or contracting relative to the overall market. A manuscript in a genre with 15% quarter-over-quarter velocity is a fundamentally different proposition than one in a genre declining at 8%, even if the writing quality scores are identical. The agent also tracks comparable title performance, identifying books published in the last 18 months with similar premises, and reports their sell-through rates, return percentages, and time-to-earn-out.

Contract management adds another layer of automation. The agent tracks option dates across hundreds of active author contracts, calculates royalty projections based on sales velocity curves, monitors rights reversion triggers, and flags when subsidiary rights (audio, translation, film) remain unlicensed past optimal exploitation windows. For a publisher managing 300+ active contracts, this alone saves 20-30 hours of administrative work per month.

from dataclasses import dataclass, field
from typing import List, Dict, Optional, Tuple
from datetime import datetime, timedelta
import statistics
import math

@dataclass
class QuerySubmission:
    query_id: str
    title: str
    author: str
    genre: str
    subgenre: str
    word_count: int
    sample_text: str           # first 5000 words
    comp_titles: List[str]     # author-provided comparables
    agent_name: Optional[str] = None
    submission_date: datetime = field(default_factory=datetime.now)

@dataclass
class MarketComp:
    isbn: str
    title: str
    genre: str
    units_sold_12m: int
    sell_through_pct: float    # units sold / units shipped
    pub_date: datetime
    advance_usd: float
    earned_out: bool
    days_to_earn_out: Optional[int] = None

@dataclass
class AuthorContract:
    contract_id: str
    author: str
    title: str
    option_expiry: Optional[datetime] = None
    rights_reversion_date: Optional[datetime] = None
    audio_rights_licensed: bool = False
    translation_rights: Dict[str, bool] = field(default_factory=dict)
    royalty_rate: float = 0.10
    advance_usd: float = 0.0
    earned_to_date: float = 0.0

class ManuscriptEvaluationAgent:
    """AI agent for query scoring, market analysis, and contract management."""

    READABILITY_TARGETS = {"literary": (10, 14), "commercial": (6, 9),
                           "ya": (5, 8), "middle_grade": (4, 6)}
    MIN_SAMPLE_WORDS = 3000
    GENRE_VELOCITY_THRESHOLD = 0.05  # 5% QoQ growth = hot

    def __init__(self, catalog_genres: Dict[str, int],
                 market_data: List[MarketComp],
                 contracts: List[AuthorContract]):
        self.catalog = catalog_genres       # {genre: title_count}
        self.market = self._index_market(market_data)
        self.contracts = contracts

    def _index_market(self, comps: List[MarketComp]) -> Dict[str, List[MarketComp]]:
        index = {}
        for c in comps:
            index.setdefault(c.genre, []).append(c)
        return index

    def score_query(self, query: QuerySubmission) -> dict:
        """Multi-dimensional scoring of an incoming manuscript query."""
        genre_fit = self._score_genre_fit(query.genre, query.subgenre)
        market_score = self._score_market_potential(query.genre, query.comp_titles)
        quality = self._score_writing_quality(query.sample_text, query.genre)
        demand = self._score_audience_demand(query.genre, query.subgenre)

        composite = (
            genre_fit["score"] * 0.20
            + market_score["score"] * 0.35
            + quality["score"] * 0.25
            + demand["score"] * 0.20
        )

        recommendation = "PASS"
        if composite >= 75:
            recommendation = "REQUEST_FULL"
        elif composite >= 60:
            recommendation = "REQUEST_PARTIAL"

        return {
            "query_id": query.query_id,
            "title": query.title,
            "composite_score": round(composite, 1),
            "genre_fit": genre_fit,
            "market_potential": market_score,
            "writing_quality": quality,
            "audience_demand": demand,
            "recommendation": recommendation,
            "estimated_advance_range": self._estimate_advance(
                market_score, quality
            )
        }

    def analyze_genre_velocity(self, genre: str,
                                quarterly_units: List[Tuple[str, int]]) -> dict:
        """Calculate genre growth rate from quarterly BookScan data."""
        if len(quarterly_units) < 3:
            return {"velocity": 0, "trend": "insufficient_data"}

        recent = quarterly_units[-1][1]
        prior = quarterly_units[-2][1]
        two_back = quarterly_units[-3][1]

        qoq_growth = (recent - prior) / max(prior, 1)
        acceleration = qoq_growth - ((prior - two_back) / max(two_back, 1))

        avg_sell_through = 0
        genre_comps = self.market.get(genre, [])
        if genre_comps:
            avg_sell_through = statistics.mean(
                c.sell_through_pct for c in genre_comps
            )

        return {
            "genre": genre,
            "current_quarter_units": recent,
            "qoq_growth_pct": round(qoq_growth * 100, 1),
            "acceleration": round(acceleration * 100, 2),
            "avg_sell_through": round(avg_sell_through * 100, 1),
            "trend": "hot" if qoq_growth > self.GENRE_VELOCITY_THRESHOLD
                     else "cooling" if qoq_growth < -0.03 else "stable",
            "catalog_gap": genre not in self.catalog or self.catalog.get(genre, 0) < 5
        }

    def audit_contracts(self) -> List[dict]:
        """Flag contracts requiring immediate attention."""
        alerts = []
        now = datetime.now()
        for c in self.contracts:
            issues = []
            if c.option_expiry and c.option_expiry < now + timedelta(days=60):
                issues.append({
                    "type": "option_expiring",
                    "date": c.option_expiry.isoformat(),
                    "action": "Decide on option exercise or decline"
                })
            if c.rights_reversion_date and c.rights_reversion_date < now + timedelta(days=90):
                issues.append({
                    "type": "rights_reversion_approaching",
                    "date": c.rights_reversion_date.isoformat(),
                    "action": "Evaluate reprint or release rights"
                })
            if not c.audio_rights_licensed and c.earned_to_date > c.advance_usd * 0.5:
                issues.append({
                    "type": "unlicensed_audio_rights",
                    "earned_pct": round(c.earned_to_date / max(c.advance_usd, 1) * 100, 0),
                    "action": "Pitch to audio publishers — strong sales signal"
                })
            unlicensed_langs = [l for l, v in c.translation_rights.items() if not v]
            if len(unlicensed_langs) > 3 and c.earned_to_date > c.advance_usd:
                issues.append({
                    "type": "translation_opportunity",
                    "languages": unlicensed_langs[:5],
                    "action": "Submit to Frankfurt/London rights catalogs"
                })
            if issues:
                alerts.append({"contract_id": c.contract_id,
                               "author": c.author, "title": c.title,
                               "issues": issues})
        return alerts

    def _score_genre_fit(self, genre: str, subgenre: str) -> dict:
        catalog_count = self.catalog.get(genre, 0)
        if catalog_count == 0:
            score = 40  # new genre — risky but diversifying
            reason = "New genre for catalog — diversification opportunity"
        elif catalog_count < 5:
            score = 80  # filling a gap
            reason = f"Catalog gap: only {catalog_count} titles in {genre}"
        elif catalog_count < 20:
            score = 70
            reason = f"Growing category: {catalog_count} titles"
        else:
            score = 50
            reason = f"Saturated in catalog: {catalog_count} titles"
        return {"score": score, "reason": reason, "catalog_titles": catalog_count}

    def _score_market_potential(self, genre: str,
                                 comp_titles: List[str]) -> dict:
        comps = self.market.get(genre, [])
        if not comps:
            return {"score": 50, "reason": "No market data", "avg_units": 0}
        avg_units = statistics.mean(c.units_sold_12m for c in comps)
        earn_out_rate = sum(1 for c in comps if c.earned_out) / len(comps)
        score = min(95, 30 + (avg_units / 1000) * 5 + earn_out_rate * 30)
        return {
            "score": round(score, 1),
            "avg_units_12m": round(avg_units, 0),
            "earn_out_rate": round(earn_out_rate * 100, 1),
            "comp_count": len(comps),
            "reason": f"{len(comps)} comps avg {avg_units:.0f} units, "
                      f"{earn_out_rate*100:.0f}% earned out"
        }

    def _score_writing_quality(self, text: str, genre: str) -> dict:
        words = text.split()
        if len(words) < self.MIN_SAMPLE_WORDS:
            return {"score": 50, "reason": "Sample too short"}
        sentences = text.count('.') + text.count('!') + text.count('?')
        avg_sentence_len = len(words) / max(sentences, 1)
        syllables = sum(self._count_syllables(w) for w in words)
        flesch_kincaid = 0.39 * avg_sentence_len + 11.8 * (syllables / len(words)) - 15.59
        target = self.READABILITY_TARGETS.get(genre, (6, 10))
        if target[0] <= flesch_kincaid <= target[1]:
            readability_score = 85
        elif abs(flesch_kincaid - statistics.mean(target)) < 3:
            readability_score = 65
        else:
            readability_score = 40
        unique_ratio = len(set(w.lower() for w in words)) / len(words)
        vocab_score = min(90, unique_ratio * 200)
        score = readability_score * 0.6 + vocab_score * 0.4
        return {
            "score": round(score, 1),
            "flesch_kincaid_grade": round(flesch_kincaid, 1),
            "target_range": target,
            "vocabulary_richness": round(unique_ratio, 3),
            "avg_sentence_length": round(avg_sentence_len, 1)
        }

    def _score_audience_demand(self, genre: str, subgenre: str) -> dict:
        comps = self.market.get(genre, [])
        recent = [c for c in comps if c.pub_date > datetime.now() - timedelta(days=365)]
        if not recent:
            return {"score": 50, "reason": "No recent comparable data"}
        avg_recent = statistics.mean(c.units_sold_12m for c in recent)
        all_avg = statistics.mean(c.units_sold_12m for c in comps) if comps else 1
        demand_ratio = avg_recent / max(all_avg, 1)
        score = min(95, 50 + demand_ratio * 30)
        return {"score": round(score, 1), "demand_ratio": round(demand_ratio, 2),
                "recent_titles": len(recent)}

    def _estimate_advance(self, market: dict, quality: dict) -> str:
        base = market.get("avg_units_12m", 5000) * 0.8
        if quality["score"] > 75:
            base *= 1.3
        if base < 5000:
            return "$5,000-$15,000"
        elif base < 20000:
            return "$15,000-$50,000"
        elif base < 50000:
            return "$50,000-$150,000"
        return "$150,000+"

    def _count_syllables(self, word: str) -> int:
        word = word.lower().strip(".,!?;:'\"")
        if len(word) <= 2:
            return 1
        vowels = "aeiouy"
        count = 0
        prev_vowel = False
        for char in word:
            is_vowel = char in vowels
            if is_vowel and not prev_vowel:
                count += 1
            prev_vowel = is_vowel
        if word.endswith('e') and count > 1:
            count -= 1
        return max(1, count)
Key insight: Genre velocity is the single most predictive signal for acquisition ROI. A manuscript scoring 60 on writing quality in a genre growing at 12% QoQ will almost always outperform a 90-quality manuscript in a genre declining at 5%. The agent weights market momentum at 35% of the composite score for this reason.

2. Editorial Workflow Automation

A typical book moves through 8-12 production stages from accepted manuscript to printed copies in warehouse: developmental editing, line editing, copyediting, proofreading, interior design, typesetting, cover design, indexing (for non-fiction), advance reader copies, marketing copy, metadata entry, and print/digital conversion. Each stage has dependencies, variable durations, and resource constraints. Most publishers manage this in spreadsheets or basic project management tools that cannot model the interdependencies.

The AI agent brings three capabilities to editorial workflow. First, automated copyediting that goes beyond grammar checking: it enforces house style guides (Chicago Manual of Style vs. AP), flags factual claims that need verification, checks internal consistency (character names, timeline logic, unit conversions), and catches anachronisms in historical fiction. Second, production scheduling with true dependency-aware Gantt optimization that accounts for freelancer availability, seasonal bottlenecks (fall list crunch), and parallel tracking of multiple titles. Third, metadata generation that produces BISAC codes, ONIX 3.0 feeds, Amazon keywords, and library cataloging data from manuscript analysis.

Cover design A/B testing is a newer application. The agent generates multiple cover concept briefs based on genre conventions, competitive analysis, and target audience demographics, then runs split tests on social media ads or email sends to determine which cover drives the highest click-through rate before committing to a final design. Publishers using this approach report 15-25% higher conversion rates on retailer product pages.

from dataclasses import dataclass, field
from typing import List, Dict, Optional, Set
from datetime import datetime, timedelta
from enum import Enum
import heapq

class StageStatus(Enum):
    PENDING = "pending"
    IN_PROGRESS = "in_progress"
    REVIEW = "review"
    COMPLETE = "complete"
    BLOCKED = "blocked"

@dataclass
class ProductionStage:
    stage_id: str
    title_id: str
    name: str                      # "copyedit", "typeset", "cover_design"
    duration_days: int
    dependencies: List[str]        # stage_ids that must complete first
    assigned_to: Optional[str] = None
    status: StageStatus = StageStatus.PENDING
    start_date: Optional[datetime] = None
    due_date: Optional[datetime] = None

@dataclass
class FreelancerSlot:
    name: str
    skill: str                     # "copyeditor", "designer", "proofreader"
    available_from: datetime
    capacity_hours_week: int
    rate_per_word: Optional[float] = None
    rate_per_hour: Optional[float] = None

@dataclass
class StyleViolation:
    line_number: int
    text: str
    rule: str
    suggestion: str
    severity: str                  # "error", "warning", "info"

class EditorialWorkflowAgent:
    """Manage production schedules, style compliance, and metadata generation."""

    BISAC_MAP = {
        "literary_fiction": "FIC019000", "thriller": "FIC031000",
        "romance": "FIC027000", "science_fiction": "FIC028000",
        "biography": "BIO000000", "business": "BUS000000",
        "self_help": "SEL000000", "history": "HIS000000",
        "ya_fiction": "YAF000000", "middle_grade": "JUV000000"
    }

    STYLE_RULES = {
        "oxford_comma": True, "serial_semicolon": False,
        "numbers_below_100_spelled": True, "em_dash_spaced": False,
        "percent_symbol": False,  # spell out "percent"
        "title_capitalization": "chicago"
    }

    def __init__(self, titles: List[dict], freelancers: List[FreelancerSlot]):
        self.titles = {t["id"]: t for t in titles}
        self.freelancers = freelancers
        self.stages = {}
        self.schedule = {}

    def optimize_production_schedule(self,
                                      stages: List[ProductionStage],
                                      deadline: datetime) -> dict:
        """Build dependency-aware schedule with resource leveling."""
        stage_map = {s.stage_id: s for s in stages}
        self.stages = stage_map

        # Topological sort for dependency ordering
        order = self._topological_sort(stages)
        if not order:
            return {"error": "Circular dependency detected"}

        schedule = []
        resource_calendar = {}
        earliest_start = {}

        for stage_id in order:
            stage = stage_map[stage_id]
            # Earliest start = max(end of all dependencies)
            dep_end = datetime.now()
            for dep_id in stage.dependencies:
                dep = stage_map.get(dep_id)
                if dep and dep.due_date:
                    dep_end = max(dep_end, dep.due_date)

            # Find available freelancer for this skill
            freelancer = self._find_freelancer(
                stage.name, dep_end, stage.duration_days
            )

            start = max(dep_end, freelancer["available_from"]
                        if freelancer else dep_end)
            end = start + timedelta(days=stage.duration_days)

            stage.start_date = start
            stage.due_date = end
            stage.assigned_to = freelancer["name"] if freelancer else "unassigned"

            slack = (deadline - end).days
            schedule.append({
                "stage_id": stage.stage_id,
                "name": stage.name,
                "title_id": stage.title_id,
                "assigned_to": stage.assigned_to,
                "start": start.strftime("%Y-%m-%d"),
                "end": end.strftime("%Y-%m-%d"),
                "duration_days": stage.duration_days,
                "slack_days": max(0, slack),
                "critical_path": slack <= 3
            })

        critical_items = [s for s in schedule if s["critical_path"]]
        return {
            "schedule": schedule,
            "total_stages": len(schedule),
            "critical_path_items": len(critical_items),
            "projected_completion": max(s["end"] for s in schedule),
            "meets_deadline": max(s["end"] for s in schedule) <= deadline.strftime("%Y-%m-%d"),
            "unassigned": [s for s in schedule if s["assigned_to"] == "unassigned"]
        }

    def check_style_compliance(self, text: str,
                                style_guide: str = "chicago") -> dict:
        """Enforce house style rules across manuscript text."""
        violations = []
        lines = text.split('\n')

        for i, line in enumerate(lines, 1):
            # Oxford comma check
            if self.STYLE_RULES["oxford_comma"]:
                if ", and " not in line and self._has_serial_list(line):
                    violations.append(StyleViolation(
                        i, line.strip(), "oxford_comma",
                        "Add comma before conjunction in series", "warning"
                    ))

            # Number spelling
            if self.STYLE_RULES["numbers_below_100_spelled"]:
                import re
                nums = re.findall(r'\b(\d{1,2})\b', line)
                for n in nums:
                    if int(n) < 100 and not self._in_dialogue(line, n):
                        violations.append(StyleViolation(
                            i, line.strip(), "number_spelling",
                            f"Spell out '{n}' (numbers below 100)", "info"
                        ))

            # Em dash spacing
            if "—" in line:
                if " — " in line and not self.STYLE_RULES["em_dash_spaced"]:
                    violations.append(StyleViolation(
                        i, line.strip(), "em_dash_spacing",
                        "Remove spaces around em dash (Chicago style)", "warning"
                    ))

            # Percent vs %
            if "%" in line and not self.STYLE_RULES["percent_symbol"]:
                violations.append(StyleViolation(
                    i, line.strip(), "percent_symbol",
                    "Spell out 'percent' instead of using %", "info"
                ))

        error_count = sum(1 for v in violations if v.severity == "error")
        return {
            "total_violations": len(violations),
            "errors": error_count,
            "warnings": sum(1 for v in violations if v.severity == "warning"),
            "info": sum(1 for v in violations if v.severity == "info"),
            "violations": [{"line": v.line_number, "rule": v.rule,
                           "suggestion": v.suggestion, "severity": v.severity}
                          for v in violations[:50]],
            "style_score": max(0, 100 - error_count * 5 - (len(violations) - error_count) * 1)
        }

    def generate_metadata(self, title_id: str, manuscript_text: str,
                           genre: str) -> dict:
        """Generate BISAC codes, keywords, and ONIX-ready metadata."""
        words = manuscript_text.split()
        word_count = len(words)
        pages_estimate = word_count // 250

        bisac_primary = self.BISAC_MAP.get(genre, "FIC000000")

        # Extract keyword candidates from frequency analysis
        stop_words = {"the", "a", "an", "is", "are", "was", "were", "in",
                      "on", "at", "to", "for", "of", "and", "but", "or",
                      "he", "she", "it", "they", "his", "her", "that", "this"}
        word_freq = {}
        for w in words:
            clean = w.lower().strip(".,!?;:'\"()-")
            if len(clean) > 3 and clean not in stop_words:
                word_freq[clean] = word_freq.get(clean, 0) + 1
        top_keywords = sorted(word_freq.items(), key=lambda x: -x[1])[:15]

        title_info = self.titles.get(title_id, {})
        return {
            "title_id": title_id,
            "bisac_primary": bisac_primary,
            "bisac_secondary": [bisac_primary[:6] + "000"],
            "keywords": [kw[0] for kw in top_keywords],
            "word_count": word_count,
            "page_estimate": pages_estimate,
            "onix_product_form": "DG" if title_info.get("digital_only") else "BB",
            "audience_code": "01",  # general/trade
            "thema_codes": self._genre_to_thema(genre),
            "reading_level": self._estimate_reading_level(manuscript_text)
        }

    def _topological_sort(self, stages: List[ProductionStage]) -> List[str]:
        in_degree = {s.stage_id: 0 for s in stages}
        graph = {s.stage_id: [] for s in stages}
        for s in stages:
            for dep in s.dependencies:
                if dep in graph:
                    graph[dep].append(s.stage_id)
                    in_degree[s.stage_id] += 1
        queue = [sid for sid, d in in_degree.items() if d == 0]
        order = []
        while queue:
            node = queue.pop(0)
            order.append(node)
            for neighbor in graph[node]:
                in_degree[neighbor] -= 1
                if in_degree[neighbor] == 0:
                    queue.append(neighbor)
        return order if len(order) == len(stages) else []

    def _find_freelancer(self, skill: str, needed_from: datetime,
                          duration: int) -> Optional[dict]:
        skill_map = {"copyedit": "copyeditor", "proofread": "proofreader",
                     "cover_design": "designer", "typeset": "designer",
                     "index": "indexer"}
        needed_skill = skill_map.get(skill, skill)
        for f in sorted(self.freelancers, key=lambda x: x.available_from):
            if f.skill == needed_skill and f.available_from <= needed_from + timedelta(days=3):
                f.available_from = needed_from + timedelta(days=duration)
                return {"name": f.name, "available_from": f.available_from}
        return None

    def _has_serial_list(self, line: str) -> bool:
        return line.count(',') >= 2 and (' and ' in line or ' or ' in line)

    def _in_dialogue(self, line: str, num: str) -> bool:
        return '"' in line or "'" in line

    def _genre_to_thema(self, genre: str) -> List[str]:
        mapping = {"literary_fiction": ["FB"], "thriller": ["FH"],
                   "romance": ["FR"], "science_fiction": ["FL"],
                   "biography": ["DN"], "business": ["K"]}
        return mapping.get(genre, ["F"])

    def _estimate_reading_level(self, text: str) -> str:
        words = text.split()[:1000]
        avg_len = statistics.mean(len(w) for w in words) if words else 5
        if avg_len > 6:
            return "advanced"
        elif avg_len > 4.5:
            return "intermediate"
        return "general"
Key insight: Production scheduling with dependency awareness typically recovers 15-20 days per title in a 30-title season. The compounding effect is significant: those recovered days translate to earlier on-sale dates, which capture more of the initial marketing momentum and improve sell-through by 8-12%.

3. Content Distribution & Discovery

Modern book distribution spans a fragmented ecosystem: Amazon (controlling 50-60% of US print and 70%+ of ebook sales), Barnes & Noble, Kobo, Apple Books, Google Play, library wholesalers like OverDrive and Hoopla, and the growing audiobook market through Audible, Libro.fm, and Spotify. Each channel has different metadata requirements, pricing rules, promotional calendars, and algorithmic discovery mechanics. An AI agent that optimizes across all these channels simultaneously unlocks revenue that manual management leaves on the table.

Dynamic pricing is one of the highest-impact applications. The agent monitors competitor pricing, tracks price elasticity by genre and format, schedules promotional price drops to coincide with marketing pushes, and implements backlist revitalization strategies. A backlist title that has been priced at $14.99 for two years might see a 300% unit lift from a temporary $2.99 promotion timed to a new release by the same author or a trending topic. The agent calculates the optimal price point, promotion duration, and expected halo effect on the rest of the author's catalog.

SEO optimization for book landing pages is often overlooked by publishers. Each title needs a discovery-optimized product page with structured data (schema.org/Book), relevant long-tail keywords, author bio content, excerpt pages, and internal linking to related titles. The agent generates these pages at scale, monitors SERP rankings for target keywords, and adjusts content based on search performance data. Publishers implementing this see 20-40% increases in organic discovery traffic to their direct-sale channels.

from dataclasses import dataclass, field
from typing import List, Dict, Optional, Tuple
from datetime import datetime, timedelta
import statistics
import math

@dataclass
class ChannelPerformance:
    channel: str               # "amazon", "bn", "kobo", "library", "audio"
    isbn: str
    units_30d: int
    revenue_30d: float
    current_price: float
    list_price: float
    royalty_rate: float
    rank: Optional[int] = None
    reviews_count: int = 0
    avg_rating: float = 0.0

@dataclass
class PriceTest:
    isbn: str
    channel: str
    test_price: float
    original_price: float
    start_date: datetime
    end_date: datetime
    units_during: int = 0
    units_baseline: int = 0

@dataclass
class SEOMetrics:
    title_id: str
    url: str
    target_keywords: List[str]
    current_rankings: Dict[str, int]     # {keyword: position}
    organic_clicks_30d: int
    impressions_30d: int
    ctr: float

class ContentDistributionAgent:
    """Optimize multi-channel distribution, pricing, and discovery."""

    CHANNEL_WEIGHTS = {"amazon": 0.55, "bn": 0.12, "kobo": 0.08,
                       "apple": 0.06, "library": 0.10, "audio": 0.09}

    PRICE_ELASTICITY = {
        "literary_fiction": -1.8, "thriller": -2.2, "romance": -2.8,
        "science_fiction": -2.0, "nonfiction": -1.5, "ya": -2.5
    }

    def __init__(self, catalog: List[dict]):
        self.catalog = {b["isbn"]: b for b in catalog}
        self.price_history = {}

    def optimize_channel_allocation(self,
                                     performances: List[ChannelPerformance]) -> dict:
        """Recommend channel-specific actions based on performance gaps."""
        by_isbn = {}
        for p in performances:
            by_isbn.setdefault(p.isbn, []).append(p)

        recommendations = []
        for isbn, channels in by_isbn.items():
            total_rev = sum(c.revenue_30d for c in channels)
            channel_shares = {}
            for c in channels:
                share = c.revenue_30d / max(total_rev, 1)
                expected = self.CHANNEL_WEIGHTS.get(c.channel, 0.05)
                gap = expected - share
                channel_shares[c.channel] = {
                    "actual_share": round(share * 100, 1),
                    "expected_share": round(expected * 100, 1),
                    "gap_pct": round(gap * 100, 1),
                    "units": c.units_30d,
                    "revenue": c.revenue_30d
                }
                if gap > 0.05:
                    recommendations.append({
                        "isbn": isbn,
                        "channel": c.channel,
                        "action": "increase_visibility",
                        "gap": round(gap * 100, 1),
                        "suggestions": self._channel_suggestions(c)
                    })

            recommendations.append({
                "isbn": isbn, "channel_breakdown": channel_shares,
                "total_revenue_30d": round(total_rev, 2)
            })
        return {"analysis": recommendations}

    def calculate_optimal_price(self, isbn: str, genre: str,
                                 current_price: float,
                                 current_units: int,
                                 test_results: List[PriceTest] = None) -> dict:
        """Dynamic pricing using elasticity model and test data."""
        elasticity = self.PRICE_ELASTICITY.get(genre, -2.0)

        if test_results:
            measured = []
            for t in test_results:
                if t.units_baseline > 0:
                    pct_price_change = (t.test_price - t.original_price) / t.original_price
                    pct_unit_change = (t.units_during - t.units_baseline) / t.units_baseline
                    if pct_price_change != 0:
                        measured.append(pct_unit_change / pct_price_change)
            if measured:
                elasticity = statistics.mean(measured)

        # Revenue optimization: find price that maximizes units * price * royalty
        best_price = current_price
        best_revenue = 0
        for test_pct in range(-40, 41, 5):
            test_price = current_price * (1 + test_pct / 100)
            if test_price < 0.99:
                continue
            pct_change = (test_price - current_price) / current_price
            projected_units = current_units * (1 + elasticity * pct_change)
            projected_revenue = projected_units * test_price * 0.70
            if projected_revenue > best_revenue:
                best_revenue = projected_revenue
                best_price = test_price

        return {
            "isbn": isbn,
            "current_price": current_price,
            "optimal_price": round(best_price, 2),
            "price_change_pct": round((best_price - current_price) / current_price * 100, 1),
            "projected_unit_change_pct": round(
                elasticity * (best_price - current_price) / current_price * 100, 1
            ),
            "projected_revenue_30d": round(best_revenue, 2),
            "elasticity_used": round(elasticity, 2),
            "data_source": "measured" if test_results else "genre_default"
        }

    def plan_backlist_revival(self, isbn: str,
                               performance: ChannelPerformance,
                               author_upcoming: Optional[dict] = None) -> dict:
        """Strategy for revitalizing backlist title sales."""
        actions = []
        timing = "immediate"

        if author_upcoming and author_upcoming.get("pub_date"):
            days_until = (author_upcoming["pub_date"] - datetime.now()).days
            if 30 < days_until < 90:
                timing = f"{days_until} days before new release"
                actions.append({
                    "type": "price_promotion",
                    "price": 2.99,
                    "duration_days": 14,
                    "start_offset_days": days_until - 21,
                    "rationale": "Halo effect: drive discovery before new release"
                })

        if performance.reviews_count < 50:
            actions.append({
                "type": "review_campaign",
                "target": "NetGalley re-listing + BookSirens",
                "rationale": "Below 50 reviews — social proof gap"
            })

        if performance.rank and performance.rank > 100000:
            actions.append({
                "type": "category_optimization",
                "action": "Reclassify into 3 narrower BISAC subcategories",
                "rationale": "Ranking too low in broad category"
            })

        if performance.avg_rating >= 4.0 and performance.units_30d < 50:
            actions.append({
                "type": "ad_campaign",
                "budget_daily": 15,
                "duration_days": 30,
                "channels": ["amazon_ads", "bookbub"],
                "rationale": "High rating but low visibility — ad-driven discovery"
            })

        projected_lift = len(actions) * 0.15
        return {
            "isbn": isbn,
            "current_units_30d": performance.units_30d,
            "current_rank": performance.rank,
            "revival_actions": actions,
            "optimal_timing": timing,
            "projected_unit_lift_pct": round(projected_lift * 100, 0),
            "estimated_incremental_revenue_90d": round(
                performance.revenue_30d * 3 * projected_lift, 2
            )
        }

    def _channel_suggestions(self, perf: ChannelPerformance) -> List[str]:
        suggestions = []
        if perf.channel == "amazon" and perf.reviews_count < 25:
            suggestions.append("Increase review count — target 25+ for algorithm boost")
        if perf.channel == "library" and perf.units_30d < 10:
            suggestions.append("Submit to library journals for review coverage")
        if perf.channel == "audio" and perf.units_30d == 0:
            suggestions.append("Audio edition missing — 25% of market unreachable")
        if perf.channel == "kobo" and perf.current_price > 9.99:
            suggestions.append("Kobo readers are more price-sensitive — test lower price point")
        return suggestions
Key insight: Backlist revitalization timed 2-3 weeks before a new release by the same author generates a halo effect that lifts both titles. Publishers using this strategy report 40-60% higher launch-week sales on new releases and 200-300% lifts on the promoted backlist title.

4. Advertising & Ad Yield Optimization

For publishers with digital properties (websites, apps, newsletters), advertising revenue is often the second or third largest revenue stream. Yet most publishing ad operations run on default settings: floor prices set once and forgotten, header bidding wrappers configured at launch and never tuned, and newsletter ad placements sold at flat CPMs regardless of segment performance. An AI agent that continuously optimizes these levers can increase ad yield by 25-40% without increasing ad load or degrading reader experience.

Programmatic ad optimization starts with floor price tuning. The floor price is the minimum CPM a publisher will accept for an impression. Set it too high and you lose fill rate; too low and you leave money on the table. The agent monitors bid density in real time, adjusts floors by ad unit, device type, geography, and time of day, and runs continuous A/B tests to find the revenue-maximizing equilibrium. For header bidding specifically, the agent evaluates each demand partner's win rate, average CPM, and latency impact, removing slow or low-value bidders that hurt page load times without contributing meaningful revenue.

Sponsored content matching is increasingly important as publishers diversify beyond programmatic. The agent scores advertiser-editorial alignment to protect brand safety and reader trust: a pharmaceutical ad adjacent to a health investigation is a different risk profile than a book publisher ad next to a literary review. The agent maintains an alignment matrix, scores each potential placement, and rejects combinations that fall below the publisher's editorial integrity threshold. For newsletter monetization specifically, the agent segments lists by engagement tier and content preference, then matches sponsors to segments where their message resonates most, typically achieving 2-3x the CPM of untargeted placements.

from dataclasses import dataclass, field
from typing import List, Dict, Optional, Tuple
from datetime import datetime, timedelta
import statistics
import math

@dataclass
class AdUnit:
    unit_id: str
    name: str                    # "top_banner", "sidebar", "in_article"
    format: str                  # "display", "native", "video"
    avg_cpm: float
    fill_rate: float
    floor_price: float
    impressions_30d: int
    revenue_30d: float

@dataclass
class BidderPerformance:
    bidder_name: str
    win_rate: float
    avg_cpm: float
    avg_latency_ms: int
    fill_rate: float
    revenue_30d: float
    timeout_rate: float

@dataclass
class NewsletterSegment:
    segment_id: str
    name: str
    subscriber_count: int
    open_rate: float
    click_rate: float
    avg_cpm_achieved: float
    content_categories: List[str]

@dataclass
class SponsorMatch:
    sponsor: str
    category: str
    max_cpm: float
    alignment_score: float       # 0-1, editorial-brand alignment
    exclusions: List[str]        # content categories to avoid

class AdYieldAgent:
    """Optimize programmatic ads, sponsored content, and newsletter monetization."""

    MIN_FLOOR_CPM = 0.50
    MAX_FLOOR_CPM = 25.00
    LATENCY_THRESHOLD_MS = 400
    ALIGNMENT_MIN_SCORE = 0.6
    PAYWALL_METER_DEFAULT = 5

    def __init__(self, ad_units: List[AdUnit],
                 bidders: List[BidderPerformance]):
        self.ad_units = {u.unit_id: u for u in ad_units}
        self.bidders = bidders

    def optimize_floor_prices(self) -> List[dict]:
        """Adjust floor prices to maximize revenue per impression."""
        recommendations = []
        for uid, unit in self.ad_units.items():
            current_rpm = (unit.revenue_30d / max(unit.impressions_30d, 1)) * 1000
            optimal_floor = self._calculate_optimal_floor(unit)

            projected_fill = self._project_fill_rate(unit, optimal_floor)
            projected_rpm = optimal_floor * projected_fill
            revenue_delta = (projected_rpm - current_rpm) * unit.impressions_30d / 1000

            recommendations.append({
                "unit_id": uid,
                "unit_name": unit.name,
                "current_floor": unit.floor_price,
                "recommended_floor": round(optimal_floor, 2),
                "current_fill_rate": round(unit.fill_rate * 100, 1),
                "projected_fill_rate": round(projected_fill * 100, 1),
                "current_rpm": round(current_rpm, 2),
                "projected_rpm": round(projected_rpm, 2),
                "monthly_revenue_delta": round(revenue_delta, 2),
                "confidence": "high" if unit.impressions_30d > 100000 else "medium"
            })
        return sorted(recommendations, key=lambda r: -r["monthly_revenue_delta"])

    def audit_header_bidding(self) -> dict:
        """Evaluate demand partners and recommend removals/additions."""
        partner_analysis = []
        total_revenue = sum(b.revenue_30d for b in self.bidders)

        for bidder in self.bidders:
            revenue_share = bidder.revenue_30d / max(total_revenue, 1)
            efficiency = bidder.avg_cpm * bidder.win_rate
            latency_penalty = max(0, (bidder.avg_latency_ms - 200) / 200)

            # Net score: revenue contribution minus latency cost
            net_score = efficiency * (1 - latency_penalty * 0.3)

            action = "keep"
            if bidder.avg_latency_ms > self.LATENCY_THRESHOLD_MS and revenue_share < 0.03:
                action = "remove"
            elif bidder.timeout_rate > 0.15:
                action = "reduce_timeout"
            elif bidder.win_rate > 0.25 and bidder.avg_cpm > statistics.mean(
                b.avg_cpm for b in self.bidders
            ):
                action = "increase_priority"

            partner_analysis.append({
                "bidder": bidder.bidder_name,
                "revenue_share_pct": round(revenue_share * 100, 1),
                "avg_cpm": bidder.avg_cpm,
                "win_rate_pct": round(bidder.win_rate * 100, 1),
                "latency_ms": bidder.avg_latency_ms,
                "timeout_rate_pct": round(bidder.timeout_rate * 100, 1),
                "net_score": round(net_score, 2),
                "action": action
            })

        removals = [p for p in partner_analysis if p["action"] == "remove"]
        latency_saved = sum(
            self.bidders[i].avg_latency_ms * self.bidders[i].timeout_rate
            for i, p in enumerate(partner_analysis) if p["action"] == "remove"
        )

        return {
            "partners": sorted(partner_analysis, key=lambda p: -p["net_score"]),
            "recommended_removals": len(removals),
            "estimated_latency_improvement_ms": round(latency_saved, 0),
            "revenue_at_risk_from_removals": round(
                sum(self.bidders[i].revenue_30d
                    for i, p in enumerate(partner_analysis)
                    if p["action"] == "remove"), 2
            )
        }

    def optimize_newsletter_monetization(self,
                                          segments: List[NewsletterSegment],
                                          sponsors: List[SponsorMatch]) -> List[dict]:
        """Match sponsors to newsletter segments for maximum CPM."""
        placements = []
        for segment in segments:
            best_match = None
            best_value = 0

            for sponsor in sponsors:
                # Check category alignment
                overlap = set(segment.content_categories) & set([sponsor.category])
                if not overlap and sponsor.alignment_score < self.ALIGNMENT_MIN_SCORE:
                    continue
                # Check exclusions
                if any(exc in segment.content_categories for exc in sponsor.exclusions):
                    continue

                # Value = CPM * alignment * engagement
                engagement_mult = segment.open_rate * segment.click_rate * 100
                value = sponsor.max_cpm * sponsor.alignment_score * (1 + engagement_mult)

                if value > best_value:
                    best_value = value
                    best_match = sponsor

            if best_match:
                expected_revenue = (
                    segment.subscriber_count * segment.open_rate
                    * best_match.max_cpm / 1000
                )
                placements.append({
                    "segment": segment.name,
                    "subscribers": segment.subscriber_count,
                    "sponsor": best_match.sponsor,
                    "alignment_score": round(best_match.alignment_score, 2),
                    "expected_cpm": best_match.max_cpm,
                    "vs_untargeted_cpm": round(
                        best_match.max_cpm / max(segment.avg_cpm_achieved, 0.01), 1
                    ),
                    "expected_revenue_per_send": round(expected_revenue, 2),
                    "open_rate": round(segment.open_rate * 100, 1)
                })

        total_rev = sum(p["expected_revenue_per_send"] for p in placements)
        return {
            "placements": placements,
            "total_revenue_per_send": round(total_rev, 2),
            "segments_matched": len(placements),
            "segments_unmatched": len(segments) - len(placements)
        }

    def optimize_paywall(self, meter_limit: int,
                          conversion_data: List[dict]) -> dict:
        """Find optimal meter setting to balance reach vs. conversion."""
        if not conversion_data:
            return {"optimal_meter": self.PAYWALL_METER_DEFAULT}

        meter_performance = {}
        for d in conversion_data:
            m = d["articles_before_wall"]
            if m not in meter_performance:
                meter_performance[m] = {"conversions": 0, "impressions": 0,
                                         "ad_revenue": 0}
            meter_performance[m]["conversions"] += d.get("converted", 0)
            meter_performance[m]["impressions"] += d.get("pageviews", 0)
            meter_performance[m]["ad_revenue"] += d.get("ad_revenue", 0)

        best_meter = meter_limit
        best_total = 0
        sub_value_monthly = 15.00  # avg subscription value

        for meter, data in meter_performance.items():
            conv_rate = data["conversions"] / max(data["impressions"], 1)
            sub_revenue = data["conversions"] * sub_value_monthly * 12
            ad_revenue = data["ad_revenue"] * 12
            total = sub_revenue + ad_revenue

            if total > best_total:
                best_total = total
                best_meter = meter

        return {
            "current_meter": meter_limit,
            "optimal_meter": best_meter,
            "projected_annual_revenue": round(best_total, 0),
            "meter_analysis": {
                m: {"conversion_rate": round(
                        d["conversions"] / max(d["impressions"], 1) * 100, 2
                    ), "monthly_ad_revenue": round(d["ad_revenue"], 0)}
                for m, d in meter_performance.items()
            }
        }

    def _calculate_optimal_floor(self, unit: AdUnit) -> float:
        if unit.fill_rate > 0.95:
            return min(unit.floor_price * 1.15, self.MAX_FLOOR_CPM)
        elif unit.fill_rate < 0.60:
            return max(unit.floor_price * 0.85, self.MIN_FLOOR_CPM)
        else:
            rpm_at_current = unit.avg_cpm * unit.fill_rate
            test_higher = (unit.floor_price * 1.10) * (unit.fill_rate * 0.92)
            test_lower = (unit.floor_price * 0.90) * min(unit.fill_rate * 1.08, 1.0)
            best = max(rpm_at_current, test_higher, test_lower)
            if best == test_higher:
                return min(unit.floor_price * 1.10, self.MAX_FLOOR_CPM)
            elif best == test_lower:
                return max(unit.floor_price * 0.90, self.MIN_FLOOR_CPM)
            return unit.floor_price

    def _project_fill_rate(self, unit: AdUnit, new_floor: float) -> float:
        change = (new_floor - unit.floor_price) / max(unit.floor_price, 0.01)
        elasticity = -0.6
        new_fill = unit.fill_rate * (1 + elasticity * change)
        return max(0.10, min(1.0, new_fill))
Key insight: Newsletter list segmentation paired with sponsor matching consistently delivers 2-3x the CPM of untargeted placements. A 200,000-subscriber list segmented into 8-10 interest clusters can generate $15-25 CPM on targeted sends versus $5-8 on broadcast sends, translating to an additional $150,000-$300,000 in annual newsletter revenue.

5. Subscription & Audience Analytics

Digital publishing increasingly depends on recurring subscription revenue, whether through paywalled content sites, digital magazine apps, newsletter premium tiers, or bundled reading platforms. The economics are compelling: a subscriber paying $10/month has a lifetime value 15-30x higher than an ad-supported reader. But subscription businesses live and die by churn. A 5% monthly churn rate means you replace your entire subscriber base every 20 months, turning acquisition into a treadmill rather than a growth engine.

The AI agent addresses this by building subscriber LTV prediction models that combine engagement scoring (articles read, time spent, scroll depth, sharing behavior), payment signals (failed charges, plan downgrades, billing complaints), and content affinity patterns. By identifying subscribers at risk of churning 30-60 days before they cancel, the agent triggers targeted retention interventions: personalized content recommendations, exclusive previews, re-engagement email sequences, or proactive plan adjustments. Publishers using predictive churn models reduce cancellations by 20-35%.

Content recommendation is the other side of the coin. Rather than generic "most popular" lists, the agent runs hybrid collaborative + content-based filtering that considers both what similar readers consumed and what thematic elements the individual reader responds to. Reading behavior analysis goes deeper than pageviews: it tracks scroll depth (did they read 20% or 90%?), completion rates, return visits to the same piece, and sharing actions. These signals feed back into both the recommendation engine and the editorial planning process, helping editors understand not just what gets clicked, but what actually gets read and valued.

from dataclasses import dataclass, field
from typing import List, Dict, Optional, Set, Tuple
from datetime import datetime, timedelta
import statistics
import math

@dataclass
class Subscriber:
    user_id: str
    plan: str                     # "free", "basic", "premium"
    signup_date: datetime
    monthly_price: float
    articles_read_30d: int
    avg_scroll_depth: float       # 0.0 - 1.0
    avg_time_per_article_sec: int
    shares_30d: int
    failed_payments_90d: int
    support_tickets_90d: int
    last_active: datetime
    content_categories: List[str]  # top categories consumed

@dataclass
class ReadingEvent:
    user_id: str
    article_id: str
    category: str
    scroll_depth: float
    time_spent_sec: int
    completed: bool
    shared: bool
    timestamp: datetime

@dataclass
class ContentItem:
    article_id: str
    title: str
    category: str
    tags: List[str]
    publish_date: datetime
    total_reads: int
    avg_completion_rate: float
    avg_scroll_depth: float

class SubscriptionAnalyticsAgent:
    """Predict churn, recommend content, and segment audiences."""

    CHURN_WEIGHTS = {
        "engagement_drop": 0.30, "payment_issues": 0.25,
        "recency_decay": 0.20, "support_friction": 0.15,
        "plan_value_gap": 0.10
    }

    def __init__(self, subscribers: List[Subscriber],
                 content: List[ContentItem]):
        self.subscribers = {s.user_id: s for s in subscribers}
        self.content = {c.article_id: c for c in content}
        self.reading_history = {}

    def ingest_events(self, events: List[ReadingEvent]):
        for e in events:
            self.reading_history.setdefault(e.user_id, []).append(e)

    def predict_churn(self, user_id: str) -> dict:
        """Calculate churn probability with contributing factors."""
        sub = self.subscribers.get(user_id)
        if not sub:
            return {"error": "Subscriber not found"}

        # Engagement score (0-100)
        engagement = self._engagement_score(sub)
        engagement_risk = max(0, (50 - engagement) / 50)

        # Payment risk
        payment_risk = min(1.0, sub.failed_payments_90d * 0.35)

        # Recency risk
        days_inactive = (datetime.now() - sub.last_active).days
        recency_risk = min(1.0, days_inactive / 30)

        # Support friction
        support_risk = min(1.0, sub.support_tickets_90d * 0.25)

        # Plan value gap: paying a lot but not using much
        if sub.monthly_price > 0:
            cost_per_article = sub.monthly_price / max(sub.articles_read_30d, 1)
            value_risk = min(1.0, max(0, (cost_per_article - 2.0) / 5.0))
        else:
            value_risk = 0

        churn_prob = (
            engagement_risk * self.CHURN_WEIGHTS["engagement_drop"]
            + payment_risk * self.CHURN_WEIGHTS["payment_issues"]
            + recency_risk * self.CHURN_WEIGHTS["recency_decay"]
            + support_risk * self.CHURN_WEIGHTS["support_friction"]
            + value_risk * self.CHURN_WEIGHTS["plan_value_gap"]
        )

        # Tenure adjustment: newer subs churn more
        tenure_months = (datetime.now() - sub.signup_date).days / 30
        if tenure_months < 3:
            churn_prob *= 1.4
        elif tenure_months > 12:
            churn_prob *= 0.7

        churn_prob = min(1.0, max(0, churn_prob))

        interventions = self._recommend_interventions(
            sub, churn_prob, engagement_risk, payment_risk, recency_risk
        )

        ltv = self._calculate_ltv(sub, churn_prob)

        return {
            "user_id": user_id,
            "churn_probability": round(churn_prob, 3),
            "risk_level": "high" if churn_prob > 0.6 else "medium" if churn_prob > 0.3 else "low",
            "contributing_factors": {
                "engagement_drop": round(engagement_risk, 2),
                "payment_issues": round(payment_risk, 2),
                "recency_decay": round(recency_risk, 2),
                "support_friction": round(support_risk, 2),
                "plan_value_gap": round(value_risk, 2)
            },
            "engagement_score": round(engagement, 1),
            "predicted_ltv_usd": round(ltv, 2),
            "interventions": interventions
        }

    def recommend_content(self, user_id: str, n: int = 10) -> List[dict]:
        """Hybrid collaborative + content-based recommendations."""
        history = self.reading_history.get(user_id, [])
        sub = self.subscribers.get(user_id)

        # Content-based: score articles by category affinity
        cat_weights = {}
        for event in history:
            weight = event.scroll_depth * (2 if event.completed else 1)
            cat_weights[event.category] = cat_weights.get(event.category, 0) + weight

        # Normalize
        total = sum(cat_weights.values()) or 1
        cat_weights = {k: v / total for k, v in cat_weights.items()}

        # Score unread content
        read_ids = {e.article_id for e in history}
        scored = []
        for aid, article in self.content.items():
            if aid in read_ids:
                continue

            content_score = cat_weights.get(article.category, 0.1)
            popularity_score = min(1.0, article.total_reads / 10000)
            quality_score = article.avg_completion_rate
            recency_days = (datetime.now() - article.publish_date).days
            recency_score = max(0, 1 - recency_days / 90)

            final_score = (
                content_score * 0.40
                + quality_score * 0.25
                + recency_score * 0.20
                + popularity_score * 0.15
            )
            scored.append((article, final_score))

        scored.sort(key=lambda x: -x[1])
        return [{
            "article_id": a.article_id,
            "title": a.title,
            "category": a.category,
            "relevance_score": round(s, 3),
            "avg_completion_rate": round(a.avg_completion_rate * 100, 1),
            "reason": f"Matches your interest in {a.category}"
                      if cat_weights.get(a.category, 0) > 0.2
                      else "Popular with similar readers"
        } for a, s in scored[:n]]

    def segment_audience(self) -> Dict[str, dict]:
        """Cluster subscribers for cross-sell and targeting."""
        segments = {
            "power_readers": [], "casual_browsers": [],
            "premium_engaged": [], "at_risk": [],
            "new_high_potential": [], "dormant": []
        }

        for uid, sub in self.subscribers.items():
            engagement = self._engagement_score(sub)
            tenure = (datetime.now() - sub.signup_date).days
            days_inactive = (datetime.now() - sub.last_active).days

            if days_inactive > 30:
                segments["dormant"].append(uid)
            elif engagement > 70 and sub.plan == "premium":
                segments["premium_engaged"].append(uid)
            elif engagement > 70:
                segments["power_readers"].append(uid)
            elif engagement < 30 and tenure > 60:
                segments["at_risk"].append(uid)
            elif tenure < 30 and engagement > 40:
                segments["new_high_potential"].append(uid)
            else:
                segments["casual_browsers"].append(uid)

        result = {}
        for name, users in segments.items():
            if not users:
                result[name] = {"count": 0, "avg_ltv": 0}
                continue
            ltvs = []
            for uid in users:
                sub = self.subscribers[uid]
                churn = self.predict_churn(uid)
                ltvs.append(churn["predicted_ltv_usd"])
            result[name] = {
                "count": len(users),
                "avg_ltv": round(statistics.mean(ltvs), 2) if ltvs else 0,
                "pct_of_total": round(len(users) / len(self.subscribers) * 100, 1),
                "recommended_action": self._segment_action(name)
            }
        return result

    def _engagement_score(self, sub: Subscriber) -> float:
        article_score = min(40, sub.articles_read_30d * 4)
        depth_score = sub.avg_scroll_depth * 30
        share_score = min(15, sub.shares_30d * 5)
        time_score = min(15, sub.avg_time_per_article_sec / 30)
        return article_score + depth_score + share_score + time_score

    def _calculate_ltv(self, sub: Subscriber, churn_prob: float) -> float:
        monthly_churn = max(0.01, churn_prob)
        avg_lifetime_months = 1 / monthly_churn
        return sub.monthly_price * avg_lifetime_months

    def _recommend_interventions(self, sub, churn_prob, eng_risk,
                                  pay_risk, rec_risk) -> List[dict]:
        interventions = []
        if eng_risk > 0.5:
            interventions.append({
                "type": "personalized_digest",
                "action": "Send curated weekly digest of top content in their categories",
                "priority": "high"
            })
        if pay_risk > 0.3:
            interventions.append({
                "type": "payment_recovery",
                "action": "Trigger dunning sequence with plan downgrade option",
                "priority": "critical"
            })
        if rec_risk > 0.5:
            interventions.append({
                "type": "re_engagement",
                "action": "Send 'We miss you' email with exclusive content preview",
                "priority": "high"
            })
        if churn_prob > 0.6 and sub.plan == "premium":
            interventions.append({
                "type": "retention_offer",
                "action": "Offer 30% discount for 3-month commitment",
                "priority": "critical",
                "ltv_at_risk": round(sub.monthly_price * 12, 2)
            })
        return interventions

    def _segment_action(self, segment: str) -> str:
        actions = {
            "power_readers": "Upsell to premium — high conversion probability",
            "casual_browsers": "Increase engagement with personalized recommendations",
            "premium_engaged": "Cross-sell events, merchandise, or annual plan",
            "at_risk": "Trigger retention campaign immediately",
            "new_high_potential": "Nurture with onboarding sequence and quick wins",
            "dormant": "Win-back campaign or sunset from active list"
        }
        return actions.get(segment, "Monitor")
Key insight: Subscribers who read fewer than 3 articles in their first 14 days have a 4x higher churn rate than those who read 8+. The agent's onboarding sequence detection identifies these at-risk new subscribers and triggers personalized content recommendations within the critical first-week window, improving 90-day retention by 25-30%.

6. ROI Analysis for a Mid-Size Publisher (500 Titles/Year)

To ground these capabilities in financial reality, we model the impact of deploying AI agents across a mid-size publisher producing 500 titles per year, with a mix of trade fiction, non-fiction, and digital content properties generating $80M in annual revenue. The analysis covers six value drivers: acquisition efficiency, production cost reduction, distribution revenue uplift, ad yield improvement, subscription growth, and operational cost savings.

Acquisition efficiency gains come from the manuscript evaluation agent reducing editorial time spent on unsuitable queries by 60-70%, while simultaneously improving the hit rate on acquired titles. If the average editor evaluates 3,000 queries per year and the agent automates first-pass scoring, that recovers approximately 400 hours per editor. More importantly, the market-aware scoring identifies genre velocity opportunities that human intuition misses, improving the average title's first-year sell-through by an estimated 8-12%. On 500 titles with an average net revenue of $40,000 per title, a 10% improvement represents $2M in incremental revenue.

Production cost reduction flows from workflow automation: faster scheduling recovers 15-20 days per title in cycle time, automated copyediting reduces freelancer costs by 30-40% on first-pass work, and metadata generation eliminates 2-3 hours of manual data entry per title. Distribution optimization lifts backlist revenue by 15-25% through dynamic pricing and channel reallocation. Ad yield improvements of 25-40% on digital properties can represent $500K-$1.5M depending on the publisher's digital footprint. Subscription analytics driving a 25% churn reduction translates directly to higher lifetime values and reduced acquisition costs.

from dataclasses import dataclass
from typing import Dict

@dataclass
class PublisherProfile:
    titles_per_year: int = 500
    avg_revenue_per_title: float = 40000
    editorial_staff: int = 25
    avg_editor_salary: float = 75000
    queries_per_editor_year: int = 3000
    freelance_budget_annual: float = 2_500_000
    backlist_titles: int = 3000
    backlist_annual_revenue: float = 15_000_000
    digital_ad_revenue: float = 4_000_000
    subscription_revenue: float = 6_000_000
    subscriber_count: int = 50000
    monthly_churn_rate: float = 0.05
    avg_subscription_price: float = 10.00

class PublisherROIModel:
    """ROI model for AI agent deployment at a mid-size publisher."""

    def __init__(self, profile: PublisherProfile = None):
        self.p = profile or PublisherProfile()

    def acquisition_efficiency(self) -> dict:
        """Manuscript evaluation agent ROI."""
        # Time savings: 60% reduction in first-pass query review
        hours_saved_per_editor = (self.p.queries_per_editor_year * 0.2) * 0.60  # 12 min * 60%
        total_hours_saved = hours_saved_per_editor * self.p.editorial_staff
        hourly_rate = self.p.avg_editor_salary / 2080
        time_value = total_hours_saved * hourly_rate

        # Better title selection: 10% sell-through improvement
        sell_through_lift = 0.10
        revenue_lift = self.p.titles_per_year * self.p.avg_revenue_per_title * sell_through_lift

        return {
            "hours_saved_annually": round(total_hours_saved, 0),
            "time_value_usd": round(time_value, 0),
            "sell_through_improvement_pct": sell_through_lift * 100,
            "revenue_lift_usd": round(revenue_lift, 0),
            "total_value_usd": round(time_value + revenue_lift, 0)
        }

    def production_cost_reduction(self) -> dict:
        """Editorial workflow automation ROI."""
        # Freelance cost reduction: 35% on copyediting first pass
        copyedit_share = 0.40  # copyediting = 40% of freelance budget
        copyedit_savings = self.p.freelance_budget_annual * copyedit_share * 0.35

        # Metadata automation: 2.5 hours saved per title
        metadata_hours = 2.5 * self.p.titles_per_year
        metadata_value = metadata_hours * 45  # $45/hr for production staff

        # Cycle time reduction: 17 days per title = earlier revenue
        days_saved = 17
        early_revenue_value = (
            self.p.titles_per_year * self.p.avg_revenue_per_title
            * (days_saved / 365) * 0.15  # 15% of annual rev in first month
        )

        return {
            "copyedit_savings_usd": round(copyedit_savings, 0),
            "metadata_hours_saved": round(metadata_hours, 0),
            "metadata_value_usd": round(metadata_value, 0),
            "cycle_time_days_saved": days_saved,
            "early_revenue_value_usd": round(early_revenue_value, 0),
            "total_value_usd": round(
                copyedit_savings + metadata_value + early_revenue_value, 0
            )
        }

    def distribution_revenue_uplift(self) -> dict:
        """Content distribution and pricing optimization ROI."""
        # Backlist revitalization: 20% revenue lift
        backlist_lift = self.p.backlist_annual_revenue * 0.20

        # Dynamic pricing on new titles: 8% revenue improvement
        new_title_lift = (self.p.titles_per_year * self.p.avg_revenue_per_title
                          * 0.08)

        # Channel optimization: redirect 5% of revenue from low to high margin
        channel_improvement = (
            self.p.titles_per_year * self.p.avg_revenue_per_title * 0.03
        )

        return {
            "backlist_lift_usd": round(backlist_lift, 0),
            "dynamic_pricing_lift_usd": round(new_title_lift, 0),
            "channel_optimization_usd": round(channel_improvement, 0),
            "total_value_usd": round(
                backlist_lift + new_title_lift + channel_improvement, 0
            )
        }

    def ad_yield_improvement(self) -> dict:
        """Advertising and ad yield optimization ROI."""
        # Floor price optimization: 15% RPM improvement
        floor_gains = self.p.digital_ad_revenue * 0.15

        # Header bidding audit: 8% from removing slow/low partners
        bidding_gains = self.p.digital_ad_revenue * 0.08

        # Newsletter monetization: 2x CPM on segmented sends
        newsletter_gains = self.p.digital_ad_revenue * 0.10

        # Paywall optimization: 12% more conversions
        paywall_gains = self.p.subscription_revenue * 0.12

        return {
            "floor_optimization_usd": round(floor_gains, 0),
            "header_bidding_usd": round(bidding_gains, 0),
            "newsletter_cpm_usd": round(newsletter_gains, 0),
            "paywall_conversion_usd": round(paywall_gains, 0),
            "total_value_usd": round(
                floor_gains + bidding_gains + newsletter_gains + paywall_gains, 0
            )
        }

    def subscription_growth(self) -> dict:
        """Subscription analytics and churn reduction ROI."""
        # Churn reduction: 25% improvement
        current_annual_churn = self.p.subscriber_count * self.p.monthly_churn_rate * 12
        reduced_churn = current_annual_churn * 0.25
        retained_revenue = reduced_churn * self.p.avg_subscription_price * 6  # avg 6 months retained

        # Content recommendation: 15% increase in articles read = higher engagement
        engagement_revenue = self.p.subscription_revenue * 0.08

        # Audience segmentation: 20% improvement in cross-sell conversion
        cross_sell = self.p.subscriber_count * 0.05 * 29  # 5% buy a $29 product

        return {
            "churn_reduction_subscribers": round(reduced_churn, 0),
            "retained_revenue_usd": round(retained_revenue, 0),
            "engagement_lift_usd": round(engagement_revenue, 0),
            "cross_sell_usd": round(cross_sell, 0),
            "total_value_usd": round(
                retained_revenue + engagement_revenue + cross_sell, 0
            )
        }

    def full_roi_analysis(self) -> dict:
        """Complete ROI model for AI agent deployment."""
        acq = self.acquisition_efficiency()
        prod = self.production_cost_reduction()
        dist = self.distribution_revenue_uplift()
        ads = self.ad_yield_improvement()
        subs = self.subscription_growth()

        total_annual_benefit = (
            acq["total_value_usd"] + prod["total_value_usd"]
            + dist["total_value_usd"] + ads["total_value_usd"]
            + subs["total_value_usd"]
        )

        # Implementation costs
        setup_cost = 350000           # integration, training, customization
        annual_platform = 180000      # AI platform licensing
        annual_support = 90000        # support + maintenance
        annual_data = 60000           # BookScan, market data feeds
        total_annual_cost = annual_platform + annual_support + annual_data
        total_year1_cost = setup_cost + total_annual_cost

        roi_year1 = ((total_annual_benefit - total_year1_cost) / total_year1_cost) * 100
        roi_year2 = ((total_annual_benefit - total_annual_cost) / total_annual_cost) * 100
        payback_months = (total_year1_cost / max(total_annual_benefit, 1)) * 12

        return {
            "publisher_profile": {
                "titles_per_year": self.p.titles_per_year,
                "total_revenue_base": round(
                    self.p.titles_per_year * self.p.avg_revenue_per_title
                    + self.p.backlist_annual_revenue
                    + self.p.digital_ad_revenue
                    + self.p.subscription_revenue, 0
                )
            },
            "annual_benefits": {
                "acquisition_efficiency": acq["total_value_usd"],
                "production_savings": prod["total_value_usd"],
                "distribution_uplift": dist["total_value_usd"],
                "ad_yield_improvement": ads["total_value_usd"],
                "subscription_growth": subs["total_value_usd"],
                "total": round(total_annual_benefit, 0)
            },
            "costs": {
                "year_1_total": total_year1_cost,
                "annual_recurring": total_annual_cost,
                "breakdown": {
                    "setup": setup_cost,
                    "platform": annual_platform,
                    "support": annual_support,
                    "data_feeds": annual_data
                }
            },
            "returns": {
                "roi_year_1_pct": round(roi_year1, 0),
                "roi_year_2_pct": round(roi_year2, 0),
                "payback_months": round(payback_months, 1),
                "net_benefit_year_1": round(total_annual_benefit - total_year1_cost, 0),
                "net_benefit_year_2": round(total_annual_benefit - total_annual_cost, 0)
            }
        }

# Run the analysis
model = PublisherROIModel()
results = model.full_roi_analysis()

print(f"Publisher: {results['publisher_profile']['titles_per_year']} titles/year")
print(f"Revenue Base: ${results['publisher_profile']['total_revenue_base']:,.0f}")
print(f"\nAnnual Benefits Breakdown:")
for k, v in results["annual_benefits"].items():
    if k != "total":
        print(f"  {k}: ${v:,.0f}")
print(f"  TOTAL: ${results['annual_benefits']['total']:,.0f}")
print(f"\nYear 1 Cost: ${results['costs']['year_1_total']:,.0f}")
print(f"Year 1 ROI: {results['returns']['roi_year_1_pct']}%")
print(f"Year 2 ROI: {results['returns']['roi_year_2_pct']}%")
print(f"Payback Period: {results['returns']['payback_months']} months")
print(f"Net Benefit Year 1: ${results['returns']['net_benefit_year_1']:,.0f}")
print(f"Net Benefit Year 2: ${results['returns']['net_benefit_year_2']:,.0f}")
Bottom line: A mid-size publisher (500 titles/year, $45M revenue base) investing $680,000 in year one can expect $2.8-6.5M in annual benefits, driven primarily by acquisition efficiency ($2.3M), distribution uplift ($4.6M), and ad yield improvements ($1.5M). Even at conservative 50% realization, the investment pays back within the first quarter, with year-2 ROI exceeding 700% as setup costs drop off.

Getting Started: Implementation Roadmap

Deploying AI agents across a publishing operation works best as a phased rollout, starting with the highest-impact, lowest-risk module:

  1. Month 1-2: Manuscript evaluation agent. Connect BookScan data feeds and internal sales databases. Deploy query scoring on incoming submissions. Measure time savings and score accuracy against editor decisions.
  2. Month 3-4: Editorial workflow automation. Map production schedules for one season's titles. Deploy dependency-aware scheduling and automated style checking. Track cycle time improvements.
  3. Month 5-6: Distribution and pricing optimization. Integrate with retailer APIs (Amazon Advertising, Kobo Writing Life, library distributors). Launch backlist revitalization campaigns on 50-100 titles. Begin dynamic pricing tests.
  4. Month 7-8: Ad yield and newsletter monetization. Deploy floor price optimization on digital properties. Segment newsletter lists and run targeted sponsor matching. Implement paywall meter testing.
  5. Month 9-12: Subscription analytics and full integration. Roll out churn prediction and retention automation. Connect all agents into a unified publishing intelligence dashboard. Fine-tune models with accumulated performance data.

The key to success is treating each agent as an editorial decision support system that augments human judgment rather than replacing it. The acquisitions editor makes the final call on which manuscripts to acquire. The production manager approves schedules. The marketing team decides on pricing strategy. The AI agent provides the data-driven analysis that makes those decisions faster, more informed, and more consistently profitable across the catalog.

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