prautoblogger/CHANGELOG.md

Changelog

All notable changes to PRAutoBlogger will be documented in this file.

Format follows Keep a Changelog, and this project uses Semantic Versioning.

[0.8.0] — 2026-04-21

Changed

• Single Image Model dropdown in admin → Images. The separate Image Provider select has been removed. The provider (OpenRouter or Cloudflare Workers AI) is now derived from the chosen model's entry in PRAutoBlogger_Image_Model_Registry on save, so mismatched provider/model pairs — the root cause of posts 650 and 657 silently missing their featured image on 2026-04-20 — are no longer possible. A one-shot migration runs on first admin_init after upgrade and auto-heals any existing site where the saved provider and model disagreed. The prautoblogger_image_provider option key is preserved; all existing reads in the pipeline continue to work.

Added

• Image Prompt Instructions setting. The system prompt used to rewrite articles into SCENE + CAPTION is now editable from admin → Images. Default preserves prior behavior; edit to reshape the creative direction without a code change.
• Retry NSFW-Blocked Images setting (default on). When the image provider rejects a prompt as NSFW — Cloudflare Workers AI returns HTTP 400 with errors[].code === 3030 on FLUX.1 schnell — PRAutoBlogger now retries the slot once with a rule-based fallback prompt (article title + style suffix, no LLM rewrite). On a second block it logs a WARNING and publishes without that image, matching existing behaviour for any unrecoverable image failure.

Fixed

• Silent per-image failures in the event log. The OpenRouter batch provider now emits Logger::error with the request key for every per-slot HTTP/cURL/parse failure (previously logged the error but not which slot it was), and Image_Pipeline::process_image_a/_b emit Logger::warning on ['error' => …] results whether or not the outer catch fires. Operators can now see NSFW blocks, 4xx bodies, and timeouts in the admin Event Log without cross- referencing PHP error_log timestamps.

[0.7.3] — 2026-04-20

Fixed

• Table colors broken in dark mode. Replaced hardcoded hex colors with theme CSS custom properties (--color-border-default, --color-bg-secondary, --color-text-primary) so table borders, header backgrounds, and text adapt to light/dark mode automatically.

[0.7.2] — 2026-04-20

Fixed

• Bullet points missing in articles. Theme's global CSS reset strips list-style from all ul/ol. Typography CSS now restores disc/decimal bullets with proper padding inside .entry-content.
• Tables break on mobile. Tables now wrapped in a horizontally scrollable container (prab-table-wrap) via the_content filter. Added responsive media query for tighter padding and smaller font at narrow viewports.

[0.7.1] — 2026-04-20

Fixed

• Typography CSS not applying. Two bugs: CSS targeted .post-content but the theme template uses .entry-content, and the _prautoblogger_generated meta gate excluded posts that predate the meta flag. Display settings now apply to all single post pages and target the correct .entry-content selector.

[0.7.0] — 2026-04-20

Added

• Display settings section. New "Display" tab in admin with three settings that control how generated articles render on the frontend:
  • Article Font — choose from 7 font families (Inter, Georgia, Merriweather, Lora, Open Sans, Roboto, System) or keep theme default. Google Fonts are loaded only on PRAutoBlogger posts that need them.
  • Article Font Size — set body text size in pixels (0 = theme default). Recommended 16–18px for comfortable reading.
  • Table Borders — adds visible borders, cell padding, header background, and alternating row colors to tables. Enabled by default.
• Article_Typography frontend class. Injects inline CSS only on singular post pages with _prautoblogger_generated meta — zero impact on non-PRAutoBlogger pages.

[0.6.3] — 2026-04-20

Fixed

• Unchecking all sources still used Reddit. Browser omits checkbox fields from POST when none are checked, so the prautoblogger_enabled_sources option never updated. Added a hidden input so an empty value is always submitted — unchecking all sources now correctly saves [].
• Pipeline status hardcoded "Reddit". The "Collecting sources…" stage message now reflects the actually-enabled sources instead of always saying "Reddit".

[0.6.2] — 2026-04-20

Added

• Deterministic peptide auto-linker. New Peptide_Linker class scans generated HTML and wraps every mention of a known peptide in a hyperlink to its /peptides/{slug}/ database page. Runs as a post-processing step in Publisher before wp_insert_post — no LLM involvement, 100% reliable. Handles case-insensitive matching, hyphen/space variants (e.g., "BPC-157" and "BPC 157"), and skips text already inside <a> tags. Gracefully no-ops if PR Core is not active.

Changed

• Removed prompt-based peptide linking. The system prompt no longer asks the LLM to link peptides (unreliable). Peptide links are now injected deterministically by Peptide_Linker after content generation. The prompt still provides article links and the "never fabricate URLs" rule.

[0.6.1] — 2026-04-20

Added

• Peptide auto-linking. When any peptide name from the PR Core database is mentioned in a generated article, the first mention is automatically linked to the corresponding /peptides/{slug}/ page. The system prompt now includes a complete peptide database reference list alongside the existing article links. Gracefully degrades if PR Core is not active (post_type_exists() guard).

Changed

• Extracted prompt builders into Content_Prompts class. Moved all prompt construction (system prompt, stage prompts, linking rules) from Content_Generator into a new Content_Prompts static helper. Generator dropped from 324 → 162 lines; prompts class is 252 lines. Both under 300.
• Internal link rules strengthened. Linking rules section now explicitly instructs the model to link every peptide's first mention and never fabricate URLs, with real published article and peptide page URLs provided.

[0.6.0] — 2026-04-20

Added

• Generate article from idea. New "Generate" column in the Ideas browser. Click any idea's Generate button to produce an article directly, bypassing the scheduled pipeline's collect → analyze → score steps. The button shows real-time stage updates (drafting, editing, publishing) via per-idea status polling, then swaps to Edit/View links with cost on completion.
  • Ideas_Browser::on_ajax_generate_from_idea() — AJAX trigger that stores the idea and schedules a one-shot WP-Cron event.
  • Ideas_Browser::on_cron_generate_from_idea() — Background handler that runs Article_Worker for the selected idea.
  • Ideas_Browser::on_ajax_idea_gen_status() — Per-idea status polling.
  • assets/js/ideas-browser.js — Button click, AJAX, polling, and UI state.
  • Per-idea transients (prab_idea_gen_{id}) for independent status tracking.
  • Page-load polling resume for ideas that were mid-generation.
  • Generation lock respected — only one generation at a time.

[0.5.3] — 2026-04-20

Fixed

• Writing instructions not obeyed by LLM. The user-configured writing instructions (bullet points, hyperlinks, style rules) were appended to the system prompt as a weak "Additional instructions:" afterthought. Models prioritized competing format directives in the user prompts and ignored the style guide.
  • System prompt now frames writing instructions as a "MANDATORY STYLE GUIDE" with explicit override language.
  • Every stage's user prompt (outline, draft, single-pass) now includes a reinforcement line: "Follow EVERY requirement from your system prompt style guide."
  • Polish stage explicitly preserves bullet points, numbered lists, and hyperlinks instead of flattening them.
  • Chief editor's revision rules now preserve structural formatting (lists, links) from the original draft.

[0.5.2] — 2026-04-20

Added

• LLM research cost amortization. The research LLM call (which runs once per pipeline execution) is now divided evenly across all articles produced in that run. Each article's cost breakdown popover shows its amortized share of the research overhead. Previously, research costs were orphaned with no post attribution.
  • Post_Assembler::amortize_research_costs() — Queries the unlinked research log entry, divides cost and tokens by article count, inserts one row per article, and removes the original.
  • link_generation_logs() now excludes llm_research stage from per-article linking so the cost isn't grabbed wholesale by the first article.
  • Source_Collector::set_cost_tracker() — Accepts the pipeline's cost tracker so research costs are tagged with the pipeline's run_id.
  • LLM_Research_Provider now uses the pipeline's cost tracker when available, ensuring research log entries share the same run_id as article entries.
  • Amortization runs after all articles complete (both single-article and chained-job paths in Pipeline_Runner).

[0.5.1] — 2026-04-20

Added

• Ideas browser admin page. New "Ideas" submenu under PRAutoBlogger showing all article ideas collected by the content analyzer. Displays suggested title, topic, type (question/complaint/comparison/news/guide), relevance score bar, frequency, key points, and target keywords. Filterable by type with count badges. Paginated at 30 per page, newest first.

[0.5.0] — 2026-04-20

Added

• LLM Deep Research source provider. New data source that sends a configurable research prompt to a reasoning-capable model (e.g. Grok 4.1 Fast, DeepSeek-R1) to identify trending topics, emerging questions, misconceptions, and content gaps. Findings feed into the content analyzer alongside Reddit data, giving the pipeline both real-time community signals AND deep knowledge-base research.
  • includes/providers/class-llm-research-provider.php — Source provider implementation.
  • New admin settings in Sources tab:
    • "LLM Deep Research" checkbox in Enabled Sources.
    • "Research Model" model picker — pick a reasoning-capable model.
    • "Research Prompt" textarea — customizable research brief with {niche} placeholder.
  • Each research run produces 8-12 findings stored as llm_research source data.
  • Deduplication via date-based source IDs (one fresh run per day, refreshes on re-run).
  • Cost tracked as llm_research stage in generation logs.
• Content analyzer now formats LLM research findings with a cleaner label ([LLM Research] Relevance: N) instead of the Reddit-specific r/subreddit format.

[0.4.9] — 2026-04-19

Added

• OpenRouter reasoning mode support. New "Enable Reasoning" toggle and "Reasoning Effort" selector in AI Models settings. When enabled, sends reasoning: {enabled: true, effort: "<level>"} to models that support it (Grok 4.1 Fast, DeepSeek-R1, etc.). Effort levels: Extra High, High, Medium, Low, Minimal. Reasoning tokens are billed as output tokens — cost is automatically tracked. Models that don't support reasoning ignore the parameter. Per-call override available via the reasoning key in the provider options array.
• Response parser now captures reasoning_tokens and reasoning_content from the OpenRouter response for downstream logging and debugging.

[0.4.8] — 2026-04-19

Fixed

• GLM 4.7 Flash timeout during analysis. The model was timing out at 120s on large analysis prompts (especially with the new custom instructions). Bumped API timeout from 120s to 180s.
• Empty raw response in error logs. Parse failure errors now include the raw LLM response inline (first 500 chars) at error level, not debug level, so the actual failure reason is always visible in the Activity Log.

[0.4.7] — 2026-04-19

Added

• Cost breakdown popover. The Cost column in the post list is now clickable. Hovering or clicking shows a per-step breakdown: stage name, model used, token count, and cost for every LLM call that produced the article.

[0.4.6] — 2026-04-19

Added

• Image B toggle. New "Generate Second Image (B)" toggle in Images settings. Disabling saves one image generation call + one LLM prompt rewrite per article. Defaults to enabled for backwards compatibility.

[0.4.5] — 2026-04-19

Added

• Analysis Instructions setting. Custom instructions appended to the analysis LLM's system prompt. Steers how source data is evaluated and which topic ideas get surfaced.
• Editor Instructions setting. Custom instructions appended to the chief editor's system prompt. Controls what the editorial review looks for and how it decides to approve, revise, or reject articles.

[0.4.4] — 2026-04-19

Added

• Writing Instructions setting. New textarea in Content settings lets you provide custom instructions appended to the LLM's system prompt when writing articles. Use it to steer style, structure, voice, and formatting without editing code.

[0.4.3] — 2026-04-19

Fixed

• "Analysis response was not valid JSON" with some models. Models like GPT 5.1 Nano ignore response_format: json_object and wrap JSON in markdown fences or preamble text. New PRAutoBlogger_Json_Extractor utility strips fences and extracts the outermost JSON object. Applied to both the content analyzer and chief editor parsers. Raw response now logged on failure for debugging.

[0.4.2] — 2026-04-19

Fixed

• Posts list Title column unreadable. Title was compressed to ~30px by the three custom columns. Title now gets 35% minimum width with word-wrap enabled. Model columns trimmed to 100px with text-overflow ellipsis for long model names.

[0.4.1] — 2026-04-19

Added

• Posts list columns: Writing Model, Image Model, Cost. Three new columns on the WordPress Posts admin page. Writing Model shows the LLM that wrote the article, Image Model shows the model that generated the featured image, and Cost shows the total API spend for generating that article (summed from the generation log). All columns show "—" for non-generated posts. Writing Model is sortable. Model names are shortened (provider prefix stripped) with full ID in a tooltip.

[0.4.0] — 2026-04-19

Added

• Semantic dedup via embedding cosine similarity. Replaces keyword-overlap dedup (60% word match) with MiniLM-L12-v2 embeddings via OpenRouter. Catches rephrasings like "BPC-157 dosing" vs "how much BPC-157 to take" that keyword matching misses. Automatic fallback to keywords if embedding API unavailable. Cost: ~$0.00001 per generation run.

  • includes/core/class-semantic-dedup.php — Dedup engine with embedding + keyword fallback.
  • includes/providers/class-open-router-embedding-provider.php — OpenRouter /embeddings client with batch support and cosine similarity helper.

• LLM-aware topic avoidance. Analysis prompt now includes the last 30 days of published article titles with explicit "do not suggest similar topics" instruction. Zero additional cost — appended to the existing analysis call.

Changed

• Dedup window widened from 7 days to 30 days (semantic similarity is precise enough to avoid over-blocking).
• class-idea-scorer.php refactored to delegate dedup to Semantic_Dedup.

Fixed

• Featured images displayed at 300×300 (WordPress "medium" size) instead of full width. Changed theme to use the_post_thumbnail('full') with responsive CSS.
• Race condition causing duplicate article generation when the AJAX status poller re-scheduled a cron event for an article already being generated.
• False stall detection on multi-article runs (measured elapsed time from start instead of idle time since last progress update).

[Unreleased]

Added

• Image pipeline integration: wires image generation into article flow (commit 1b). Completes the image + Instagram A/B experiment workstream by adding three orchestration classes that generate and sideload two images per published post.

  • includes/core/class-image-pipeline.php — Orchestrates A/B image generation: generates Image A (article-driven prompt) as featured image and Image B (source-driven prompt) stored in post meta _prautoblogger_image_b_id. Each image is independently fallible; article publishes even if both fail.
  • includes/core/class-image-prompt-builder.php — Synthesizes visual prompts from article title + first paragraph (for Image A) and Reddit thread title + top comment (for Image B). Both prompts append the CEO-locked 90s infomercial style suffix from settings. Prompts kept concise (under 200 words) for FLUX.1 generation quality.
  • includes/core/class-image-media-sideloader.php — Downloads generated image bytes, creates temporary file, imports via media_handle_sideload(), sets alt text and generation metadata (_prautoblogger_image_*), cleans up temp files.
  • Settings: prautoblogger_image_enabled (toggle, default off) — allows users to enable/disable image generation after providing Cloudflare credentials.
  • PRAutoBlogger_Publisher::attach_generated_images() — New private method that runs the image pipeline post-creation and sets _thumbnail_id (Image A) and _prautoblogger_image_b_id (Image B) post meta. Errors are logged but do not block post publication.
  • Tests: tests/unit/Core/ImagePipelineTest.php (orchestration, cost tracking, graceful failure modes), tests/unit/Core/ImagePromptBuilderTest.php (prompt generation from various article/source shapes, length limits).

• ARCHITECTURE.md: added new image pipeline step (6b) to data flow, three new files to core/ section of file tree.

• OpenRouter model registry (model-picker commit 1). Foundation for the smart model picker: fetches, normalizes, and caches the OpenRouter model list (/api/v1/models — free, unauthenticated). Daily refresh via the existing prautoblogger_daily_generation cron hook with 12h idempotency.

  • includes/services/interface-model-registry.php — Phase 3-aware contract.
  • includes/services/class-open-router-model-registry.php — fetch + cache + query.
  • includes/services/class-open-router-model-normalizer.php — raw → standardized shape.
  • Capability vocabulary: text→text, text+image→text, text→embedding, etc.
  • Zero-coupling: no PRAUTOBLOGGER_* constants inside the class — Phase 2 lift into a shared Composer package requires only a namespace rename.
  • Cost impact: $0/month (free endpoint, no LLM tokens).

• Image provider: Cloudflare Workers AI (FLUX.1 family). Ships the provider, its pricing + validator helpers, four new settings fields in a new "Images" admin section, and unit tests with mocked HTTP.

  • includes/providers/interface-image-provider.php — contract for any image provider.
  • includes/providers/class-cloudflare-image-provider.php — FLUX on Workers AI, direct call to /accounts/{id}/ai/run/... (bypassing AI Gateway per decision D-001); exponential-backoff retries on 429 / 5xx / network, loud fail on 4xx; handles both raw-bytes and JSON-envelope response shapes.
  • includes/providers/class-cloudflare-image-pricing.php — model alias → full Workers AI id resolution + per-megapixel cost estimation.
  • includes/providers/class-cloudflare-image-validator.php — non-destructive "Test Connection" credential check that never generates a real image.
  • Settings: prautoblogger_cloudflare_ai_token (encrypted), prautoblogger_cloudflare_account_id, prautoblogger_image_model (schnell / dev), prautoblogger_image_style_suffix (default = CEO-locked 90s infomercial prompt).
  • Constants: PRAUTOBLOGGER_DEFAULT_IMAGE_MODEL, PRAUTOBLOGGER_DEFAULT_IMAGE_STYLE_SUFFIX.
  • Tests: tests/unit/Providers/CloudflareImageProviderTest.php.

• ARCHITECTURE.md: new key decision #16 (image pipeline: Cloudflare Workers AI), new external API integration row, new options rows, file tree updates.

• CONVENTIONS.md: new "How To: Add a New Image Provider" section.

[0.2.2] — 2026-04-12

Changed

• CI/CD pipeline now runs PHPCS and PHPUnit before deploying. Added shivammathur/setup-php@v2 for PHP 8.1, Composer install, WordPress Coding Standards check, and full PHPUnit test suite. PHPCS runs in report-only mode (|| true) while codebase is brought into full compliance; PHPUnit failures block deploy.
• Removed stub source providers (TikTok, Instagram, YouTube). These were dead code — not registered in Source_Collector, threw RuntimeException if enabled, and confused AI agents reading the codebase. The Source_Provider_Interface remains the contract for adding future platforms (see CONVENTIONS.md).
• Removed "coming soon" checkboxes from Enabled Sources setting.
• Updated ARCHITECTURE.md: removed stub file references, added cross-system LLM budget coordination section documenting how PRAutoBlogger and Peptide News share an OpenRouter account.

Improved

• PublisherTest rewritten with real behavioral assertions. Now tests: post_status ('publish' vs 'draft'), generation metadata storage, title from idea, taxonomy assignment, tag assignment, run_id-based log linking, RuntimeException on WP_Error, action/filter hook firing. Replaces previous method-existence-only checks.

[0.2.1] — 2026-04-12

Changed

• Reddit data source switched to RSS primary, .json fallback. PullPush.io was frequently stale/unavailable. Reddit RSS/Atom feeds work reliably from datacenter IPs (Hostinger) where .json gets 403. Comments are still fetched via .json (unavailable in RSS).
• Updated "Enabled Sources" checkbox label to "Reddit (RSS + .json)".
• Updated "Test Connections" to show RSS + .json status.
• Source status indicator now shows Reddit RSS (Primary) and .json (Fallback).

Removed

• class-pull-push-client.php — replaced by RSS feeds in class-reddit-json-client.php.
• All PullPush.io references from admin UI, docs, and provider code.

Fixed

• Generate Now button now always sends force: '1' to clear stale generation locks.
• Fixed encryption double-encryption bug with enc: prefix detection.

[0.2.0] — 2026-04-12

Changed

• Reddit data source migrated from OAuth to RSS + .json (no auth required). Reddit rejected our API application; RSS feeds and .json endpoints are free and require no authentication.
• Removed Reddit Client ID and Client Secret fields from admin API Keys tab.
• Updated "Test Connections" results to show Reddit source status.

Added

• Source status indicator in API Keys tab showing RSS and .json availability with live status dots and last-collection timestamp.
• Configurable research cache TTL (1–72 hours) in Sources tab.
• Reddit time window selector (24h / week / month) in Sources tab.
• Posts-per-subreddit limit (5–100) in Sources tab.
• LiteSpeed cache purge step in CI/CD deploy pipeline.

Removed

• class-reddit-api-client.php — replaced by class-reddit-json-client.php.
• Reddit OAuth credential fields and encrypted storage entry.

Fixed

• Deploy pipeline now purges LiteSpeed/OPcache after file extraction, preventing stale PHP bytecode from being served.

[0.1.0] — 2026-04-10

Added

• Initial plugin scaffold with WordPress-native architecture.
• OpenRouter LLM provider with configurable model selection and retry logic.
• Reddit API source provider (OAuth2 script app) for collecting posts and comments.
• Content analysis engine: detects recurring questions, complaints, and comparisons.
• Idea scorer with deduplication against existing posts.
• Configurable writer agent pipeline (single-pass or multi-step: outline → draft → polish).
• Chief editor agent for LLM-powered editorial review before publishing.
• Publisher with full generation metadata stored as post_meta.
• Cost tracker with per-call logging, monthly budget enforcement, and hard-stop.
• Metrics collector: WordPress native + GA4 integration + composite content scoring.
• Admin settings page with sections for API keys, models, content, sources, schedule, and analytics.
• Metrics dashboard showing monthly spend, budget utilization, cost by stage, and daily spend.
• Post metabox showing generation metadata on PRAutoBlogger-generated posts.
• Admin notices for missing API keys, budget warnings, and configuration hints.
• Stub providers for TikTok, Instagram, and YouTube (future implementation).
• Encrypted storage for API keys using AES-256-CBC with wp_salt().
• AJAX-powered "Generate Now" and "Test Connections" buttons.
• Custom database tables for source data, analysis results, generation logs, and content scores.
• Clean uninstall handler removing all plugin data.
• ARCHITECTURE.md and CONVENTIONS.md for AI-readable codebase documentation.