> For the complete documentation index, see [llms.txt](https://ai-os-and-trend-finder.gitbook.io/ai-os-and-trend-finder-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ai-os-and-trend-finder.gitbook.io/ai-os-and-trend-finder-docs/.spec_system/archive/sessions/phase28-session14-direct-first-party-source-adapters/implementation-notes.md).

# Implementation Notes

**Session ID**: `phase28-session14-direct-first-party-source-adapters` **Started**: 2026-06-14 14:57 **Last Updated**: 2026-06-14 15:38

***

## Session Progress

| Metric              | Value     |
| ------------------- | --------- |
| Tasks Completed     | 25 / 25   |
| Estimated Remaining | 0 minutes |
| Blockers            | 0         |

***

## Task Log

### 2026-06-14 - Session Start

**Environment verified**:

* [x] Prerequisites confirmed
* [x] Tools available through project Bun install
* [x] Directory structure ready
* [x] No database changes in session scope

***

### Task T001 - Verify Session 14 Prerequisites And Compliance Gate

**Started**: 2026-06-14 14:57 **Completed**: 2026-06-14 14:58 **Duration**: 1 minute

**Notes**:

* Confirmed the active session from `.spec_system/scripts/analyze-project.sh --json`.
* Confirmed environment prerequisites and verified project-local TypeScript, Vitest, and Zod availability through Bun.
* Recorded that source compliance docs remain the blocking gate before direct network adapter activation.

**Files Changed**:

* `.spec_system/PRD/phase_28/session_14_direct_first_party_source_adapters.md` - added implementation preflight record and marked Session 13 prerequisite complete.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/tasks.md` - marked T001 complete.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/implementation-notes.md` - initialized implementation log.

**BQC Fixes**:

* Trust boundary enforcement: kept direct source activation blocked until compliance docs are re-reviewed.

***

### Task T002 - Re-review Direct arXiv And GitHub API Compliance

**Started**: 2026-06-14 14:58 **Completed**: 2026-06-14 15:00 **Duration**: 2 minutes

**Notes**:

* Re-reviewed arXiv direct API terms and recorded the direct metadata-only approval with single-connection 3-second pacing.
* Re-reviewed GitHub REST repository search constraints and recorded the direct metadata-only approval with optional script-only `GITHUB_TOKEN` support and search rate-limit handling.
* Preserved both Apify declarations as reviewed fallbacks.

**Files Changed**:

* `docs/sources/source-compliance-arxiv.md` - updated direct adapter status, required fields, pacing, exclusions, readiness, fallback, and spend-label requirements.
* `docs/sources/source-compliance-github.md` - updated direct adapter status, search rate limits, token boundary, approved fields, exclusions, readiness, fallback, and spend-label requirements.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/tasks.md` - marked T002 complete.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/implementation-notes.md` - logged T002 progress.

**BQC Fixes**:

* Trust boundary enforcement: documented script-only GitHub token use and direct adapter field exclusions before enabling code.
* External dependency resilience: recorded arXiv pacing and GitHub rate-limit stop behavior as adapter requirements.

***

### Task T003 - Re-review Direct RSS And HN Algolia Compliance

**Started**: 2026-06-14 15:00 **Completed**: 2026-06-14 15:03 **Duration**: 3 minutes

**Notes**:

* Re-reviewed RSS/news direct collection and approved only reviewed public feed URLs, starting with the existing HNRSS AI search feed.
* Re-reviewed HN Algolia keyword search as a current-only story metadata path with the Firebase top-stories path retained as fallback.
* Recorded field exclusions and degraded/offline readiness requirements before direct collection.

**Files Changed**:

* `docs/sources/source-compliance-rss-news.md` - added direct feed allowlist, approved fields, fetch/cadence requirements, private/local URL rejection, fallback, and spend-label requirements.
* `docs/sources/source-compliance-hackernews.md` - added HN Algolia keyword-search boundary, field exclusions, fallback behavior, and current-only stance.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/tasks.md` - marked T003 complete.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/implementation-notes.md` - logged T003 progress.

**BQC Fixes**:

* Trust boundary enforcement: documented RSS allowlist-only collection and private/local URL rejection.
* Error information boundaries: documented exclusion of raw XML, raw Algolia JSON, author fields, comment text, and query trace details from browser-visible output.

***

### Task T004 - Update Apify Source Onboarding For Direct Fallbacks

**Started**: 2026-06-14 15:03 **Completed**: 2026-06-14 15:05 **Duration**: 2 minutes

**Notes**:

* Documented direct-first source gating for arXiv, GitHub, RSS, and HN.
* Recorded no-duplicate behavior: successful direct rows suppress matching Apify runs.
* Recorded fallback behavior: blocked or failed direct paths leave reviewed Apify declarations eligible when configured.
* Recorded zero-cost public API spend-label preservation.

**Files Changed**:

* `docs/sources/apify-source-onboarding.md` - added direct first-party adapter gate, fallback rules, duplicate suppression, and safe diagnostics/spend boundaries.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/tasks.md` - marked T004 complete.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/implementation-notes.md` - logged T004 progress.

**BQC Fixes**:

* Duplicate action prevention: documented direct-success Apify skip behavior.
* Error information boundaries: documented the browser/trace boundary for direct and fallback diagnostics.

***

### Task T005 - Extend Source Adapter Contracts For Direct Readiness

**Started**: 2026-06-14 15:05 **Completed**: 2026-06-14 15:08 **Duration**: 3 minutes

**Notes**:

* Added direct source IDs, provider types, readiness statuses, diagnostic severity, fallback policies, direct declarations, readiness payloads, and fallback decisions.
* Extended source setup summaries and adapter results with optional direct readiness fields.
* Extended adapter context with optional keyword window and frozen direct readiness maps for collector integration.

**Files Changed**:

* `scripts/extensions/trend-finder/sources/types.ts` - added direct source contracts and optional adapter context/result fields.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/tasks.md` - marked T005 complete.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/implementation-notes.md` - logged T005 progress.

**BQC Fixes**:

* Contract alignment: kept all new direct-source fields additive and optional at current integration points.
* Trust boundary enforcement: modeled direct diagnostics as bounded explicit fields rather than raw provider responses.

***

### Task T006 - Create Shared Direct Source Utilities

**Started**: 2026-06-14 15:08 **Completed**: 2026-06-14 15:16 **Duration**: 8 minutes

**Notes**:

* Added direct fetch helper with timeout, retry/backoff, retry-after handling, parent abort propagation, and cleanup for timers/listeners.
* Added safe warning redaction, public URL validation, bounded text, metrics, JSON schema parsing, XML tag helpers, and keyword-window bounding.

**Files Changed**:

* `scripts/extensions/trend-finder/sources/direct-source-utils.ts` - created shared direct-source utility module.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/tasks.md` - marked T006 complete.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/implementation-notes.md` - logged T006 progress.

**BQC Fixes**:

* Resource cleanup: fetch timeouts and abort listeners are cleared on scope exit.
* External dependency resilience: direct requests have timeouts, retry/backoff, and retry-after support.
* Error information boundaries: diagnostics pass through direct-source redaction before leaving script code.

***

### Task T007 - Create Direct Connector Readiness Helper

**Started**: 2026-06-14 15:16 **Completed**: 2026-06-14 15:24 **Duration**: 8 minutes

**Notes**:

* Added reviewed direct source declarations for arXiv, GitHub, RSS, and HN Algolia.
* Added readiness resolver with global and per-source enable flags, compliance-blocked states, optional GitHub token diagnostics, frozen-readiness behavior, and warning projection.
* Added failure-readiness and fallback-decision helpers for direct-vs-Apify routing.

**Files Changed**:

* `scripts/extensions/trend-finder/sources/direct-source-readiness.ts` - created direct source declarations, readiness resolver, and fallback decision helpers.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/tasks.md` - marked T007 complete.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/implementation-notes.md` - logged T007 progress.

**BQC Fixes**:

* State freshness on re-entry: readiness can be frozen before collection and reused after collection starts.
* Trust boundary enforcement: unreviewed or disabled direct sources are blocked before network calls.
* Contract alignment: fallback decisions use the same direct source IDs as reviewed Apify declarations.

***

### Task T008 - Create Direct arXiv Adapter Foundation

**Started**: 2026-06-14 15:24 **Completed**: 2026-06-14 15:34 **Duration**: 10 minutes

**Notes**:

* Added direct arXiv adapter with reviewed keyword query construction, AI/ML category bounds, Atom parsing, 3-second process pacing, retries, timeouts, and zero-cost spend summary.
* Added arXiv metadata normalization helper that emits only title, canonical abstract URL, bounded abstract snippet, public dates, categories-derived relevance, and source-local unsupported defaults.
* Direct adapter returns offline/degraded readiness and fallback-eligible diagnostics on disabled, empty, timeout, rate-limit, and fetch failure paths.

**Files Changed**:

* `scripts/extensions/trend-finder/sources/arxiv-adapter.ts` - created direct arXiv adapter.
* `scripts/extensions/trend-finder/normalize.ts` - added direct arXiv metadata normalization helper.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/tasks.md` - marked T008 complete.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/implementation-notes.md` - logged T008 progress.

**BQC Fixes**:

* External dependency resilience: direct arXiv requests use timeout, retry/backoff, abort handling, and official pacing.
* Error information boundaries: raw Atom XML, PDF links, author contacts, and provider URLs are not emitted to browser evidence.
* Contract alignment: arXiv keeps the stable `arxiv-ai-papers` source ID and zero-cost public API spend label.

***

### Task T009 - Create Direct GitHub Adapter Foundation

**Started**: 2026-06-14 15:34 **Completed**: 2026-06-14 15:44 **Duration**: 10 minutes

**Notes**:

* Added direct GitHub repository search adapter with bounded keyword queries, small per-page caps, response schema validation, sequential pacing, optional script-only `GITHUB_TOKEN`, and rate-limit diagnostics.
* Added GitHub metadata normalization helper that emits public repository name, canonical URL, description, public metrics, language/topics, and public timestamps only.
* Duplicate repositories are suppressed by repository ID before evidence normalization.

**Files Changed**:

* `scripts/extensions/trend-finder/sources/github-adapter.ts` - created direct GitHub adapter.
* `scripts/extensions/trend-finder/normalize.ts` - added direct GitHub repository normalization helper.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/tasks.md` - marked T009 complete.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/implementation-notes.md` - logged T009 progress.

**BQC Fixes**:

* Trust boundary enforcement: optional GitHub token is read script-side only and never emitted in output.
* Duplicate action prevention: duplicate repositories are skipped by stable repository ID.
* External dependency resilience: GitHub search uses timeout/retry handling and stops when rate-limit headers show no remaining search budget.
* Error information boundaries: private repos, raw REST payloads, code contents, profile data, comments, clone URLs, and rate-limit header values are not emitted to browser evidence.

### Task T016 - Register Direct Adapters In Collector

**Started**: 2026-06-14 15:05 **Completed**: 2026-06-14 15:18 **Duration**: 13 minutes

**Notes**:

* Registered arXiv, GitHub, RSS, and HN direct adapters ahead of Apify collection.
* Resolved direct readiness once before source collection and passed the frozen readiness map through adapter context.
* Added direct fallback decision tracing and de-duped skipped Apify fallback source rows when the direct path produced reviewed evidence.

**Files Changed**:

* `scripts/extensions/trend-finder/collector.ts` - added direct adapter registration, frozen readiness context, fallback decision tracing, and skipped fallback filtering.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/tasks.md` - marked T016 complete.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/implementation-notes.md` - logged T016 progress.

**BQC Fixes**:

* State freshness on re-entry: readiness is resolved before collection and reused for the run.
* Duplicate action prevention: successful direct rows suppress matching skipped Apify source rows.
* Error information boundaries: trace payloads contain only source IDs, statuses, booleans, and counts.

### Task T017 - Attach Direct Public API Spend Summaries

**Started**: 2026-06-14 15:18 **Completed**: 2026-06-14 15:19 **Duration**: 1 minute

**Notes**:

* Added a public API direct spend summary helper with a direct-source-specific zero-cost reason.
* Switched arXiv, GitHub, RSS, and HN direct rows to attach public API spend summaries directly.
* Preserved deterministic aggregate spend ordering through the existing spend aggregation sort.

**Files Changed**:

* `scripts/extensions/trend-finder/spend-accounting.ts` - added `buildPublicApiDirectSourceSpendSummary`.
* `scripts/extensions/trend-finder/sources/arxiv-adapter.ts` - attached direct public API spend summary.
* `scripts/extensions/trend-finder/sources/github-adapter.ts` - attached direct public API spend summary.
* `scripts/extensions/trend-finder/sources/rss-adapter.ts` - attached direct public API spend summary.
* `scripts/extensions/trend-finder/sources/hn-adapter.ts` - attached direct public API spend summary.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/tasks.md` - marked T017 complete.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/implementation-notes.md` - logged T017 progress.

**BQC Fixes**:

* Cost transparency: direct public API rows explicitly show that they do not use a paid runner.
* Contract alignment: spend summaries reuse the existing browser-safe spend schema.

### Task T018 - Include Direct Status In Source Setup Summaries

**Started**: 2026-06-14 15:19 **Completed**: 2026-06-14 15:20 **Duration**: 1 minute

**Notes**:

* Resolved direct readiness in source setup state generation and attached matching direct readiness to Apify fallback declarations.
* Added direct-vs-Apify fallback labels that distinguish direct-active skip, Apify fallback eligibility, and direct fallback not required states.
* Projected direct readiness warnings into bounded source setup diagnostics.

**Files Changed**:

* `scripts/extensions/trend-finder/sources/source-setup.ts` - added direct readiness resolution, fallback labels, and bounded diagnostic projection.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/tasks.md` - marked T018 complete.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/implementation-notes.md` - logged T018 progress.

**BQC Fixes**:

* Error information boundaries: direct diagnostics are redacted and bounded before entering source setup state.
* Contract alignment: new direct setup fields remain additive and optional.

### Task T019 - Add Browser Schema And View Model Labels

**Started**: 2026-06-14 15:20 **Completed**: 2026-06-14 15:21 **Duration**: 1 minute

**Notes**:

* Added browser schema enums and schemas for direct source providers, readiness statuses, diagnostics, and fallback policies.
* Added optional direct readiness and fallback label fields to source setup source summaries.
* Added view-model labels and tones for direct readiness states and fallback labels.

**Files Changed**:

* `src/extensions/trend-finder/schema.ts` - added direct readiness schemas/defaults and source setup optional fields.
* `src/extensions/trend-finder/view-model.ts` - added direct readiness labels, tones, and source setup view-model fields.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/tasks.md` - marked T019 complete.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/implementation-notes.md` - logged T019 progress.

**BQC Fixes**:

* Contract alignment: browser payload parsing now preserves direct readiness fields.
* UI resilience: long direct diagnostic text is bounded before rendering.

### Task T020 - Render Direct Labels In Source Setup

**Started**: 2026-06-14 15:21 **Completed**: 2026-06-14 15:22 **Duration**: 1 minute

**Notes**:

* Rendered a direct readiness pill next to each source status pill.
* Rendered the direct fallback label under the source run metadata with an accessible label and title fallback.
* Kept the existing draft reset on source setup state re-entry.

**Files Changed**:

* `src/extensions/trend-finder/components/source-setup-panel.tsx` - added direct readiness and fallback rendering.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/tasks.md` - marked T020 complete.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/implementation-notes.md` - logged T020 progress.

**BQC Fixes**:

* State freshness on re-entry: rendering uses the existing controls data reset effect.
* Accessibility: direct fallback status is exposed through an explicit accessible label.

### Verification After T016-T020

**Completed**: 2026-06-14 15:22

**Commands**:

* `bun x tsc -p tsconfig.scripts.json`
* `bun x tsc -p tsconfig.json`

**Result**:

* Both TypeScript checks passed.

### Task T021 - Update Trend Finder Source Docs

**Started**: 2026-06-14 15:22 **Completed**: 2026-06-14 15:24 **Duration**: 2 minutes

**Notes**:

* Documented direct-first arXiv, GitHub, RSS, and HN adapters.
* Added direct source environment switches, readiness labels, fallback behavior, and public API spend labels.
* Kept deferred source candidates explicit and compliance-first.

**Files Changed**:

* `docs/extensions/trend-finder-sources.md` - updated direct adapter model, env keys, readiness states, Source Setup fields, spend labels, and deferred source notes.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/tasks.md` - marked T021 complete.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/implementation-notes.md` - logged T021 progress.

**BQC Fixes**:

* Contract alignment: docs now match the direct-first collector/source setup behavior.
* Cost transparency: docs describe direct public API zero-cost labels and skipped Apify fallback spend rows.

### Task T022 - Add Direct Utility And Readiness Tests

**Started**: 2026-06-14 15:24 **Completed**: 2026-06-14 15:29 **Duration**: 5 minutes

**Notes**:

* Added tests for public URL validation, diagnostic redaction, fetch retry handling, timeout mapping, parent abort behavior, JSON schema validation, keyword bounding, readiness freezing, and fallback decisions.

**Files Changed**:

* `scripts/extensions/trend-finder/sources/__tests__/direct-source-utils.test.ts` - created direct utility and readiness test coverage.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/tasks.md` - marked T022 complete.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/implementation-notes.md` - logged T022 progress.

**BQC Fixes**:

* Failure path completeness: retry, timeout, abort, malformed JSON, and disabled readiness paths are covered.
* Error information boundaries: redaction tests cover token, path, and provider URL leakage.

### Task T023 - Add Direct Adapter Tests

**Started**: 2026-06-14 15:24 **Completed**: 2026-06-14 15:30 **Duration**: 6 minutes

**Notes**:

* Added direct adapter tests for arXiv Atom metadata, GitHub repository search metadata and script-only token handling, reviewed RSS feed parsing, and HN Algolia keyword metadata.
* Tests assert PII/raw-field exclusions and direct public API zero-cost spend labels without live network calls.

**Files Changed**:

* `scripts/extensions/trend-finder/sources/__tests__/arxiv-adapter.test.ts` - created direct adapter test coverage for arXiv, GitHub, RSS, and HN.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/tasks.md` - marked T023 complete.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/implementation-notes.md` - logged T023 progress.

**BQC Fixes**:

* Trust boundary enforcement: tests assert author/contact/comment/story text and tokens are excluded from direct adapter output.
* Cost transparency: tests assert public API not-applicable spend rows on direct adapters.

### Task T024 - Add Collector, Fallback, Setup, UI, And Spend Tests

**Started**: 2026-06-14 15:26 **Completed**: 2026-06-14 15:31 **Duration**: 5 minutes

**Notes**:

* Added Apify fallback skip coverage for direct-success decisions.
* Added collector coverage for frozen readiness, direct fallback decisions, skipped duplicate source suppression, and source setup direct status projection.
* Added source setup, view-model, Source Setup panel, and spend accounting assertions for direct readiness and zero-cost labels.

**Files Changed**:

* `scripts/extensions/trend-finder/sources/__tests__/apify-adapter.test.ts` - added direct-success Apify skip test.
* `scripts/extensions/trend-finder/__tests__/collector.test.ts` - added direct fallback decision propagation and duplicate suppression test.
* `scripts/extensions/trend-finder/sources/__tests__/source-setup.test.ts` - added direct readiness/fallback source setup assertions.
* `scripts/extensions/trend-finder/__tests__/spend-accounting.test.ts` - added direct public API spend helper assertion.
* `src/extensions/trend-finder/components/__tests__/source-setup-panel.test.tsx` - added direct readiness view-model and panel rendering assertions.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/tasks.md` - marked T024 complete.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/implementation-notes.md` - logged T024 progress.

**BQC Fixes**:

* Duplicate action prevention: collector and Apify tests verify direct-success fallback suppression.
* UI resilience: Source Setup panel renders direct status through parsed schema/view-model fields.

### Verification After T022-T024

**Completed**: 2026-06-14 15:31

**Commands**:

* `bun x vitest run scripts/extensions/trend-finder/sources/__tests__/direct-source-utils.test.ts scripts/extensions/trend-finder/sources/__tests__/arxiv-adapter.test.ts`
* `bun x vitest run scripts/extensions/trend-finder/sources/__tests__/apify-adapter.test.ts scripts/extensions/trend-finder/sources/__tests__/source-setup.test.ts scripts/extensions/trend-finder/__tests__/spend-accounting.test.ts`
* `bun x vitest run scripts/extensions/trend-finder/__tests__/collector.test.ts src/extensions/trend-finder/components/__tests__/source-setup-panel.test.tsx`
* `bun x tsc -p tsconfig.scripts.json`
* `bun x tsc -p tsconfig.json`

**Result**:

* Focused direct/source setup/collector/UI test suites passed.
* Script and app TypeScript checks passed.

***

### Task T010 - Create Direct RSS Adapter Foundation

**Started**: 2026-06-14 15:44 **Completed**: 2026-06-14 15:53 **Duration**: 9 minutes

**Notes**:

* Added reviewed RSS feed allowlist starting with the existing HNRSS AI newest feed.
* Added public URL validation before network calls, RSS/Atom parsing, relevance filtering, item caps, and malformed/empty feed diagnostics.
* Added RSS metadata normalization helper for title, canonical URL, bounded snippet, feed name, and published date only.

**Files Changed**:

* `scripts/extensions/trend-finder/sources/rss-adapter.ts` - created direct RSS adapter.
* `scripts/extensions/trend-finder/normalize.ts` - added direct RSS item normalization helper.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/tasks.md` - marked T010 complete.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/implementation-notes.md` - logged T010 progress.

**BQC Fixes**:

* Trust boundary enforcement: direct RSS fetches only reviewed public URLs and rejects private/local URLs before network calls.
* Failure path completeness: empty or malformed feeds return degraded readiness and warnings instead of silent drops.
* Error information boundaries: raw XML, full article bodies, author emails, media enclosures, and private feeds are excluded from browser output.

***

### Task T011 - Extend HN Algolia Type Constants

**Started**: 2026-06-14 15:53 **Completed**: 2026-06-14 15:55 **Duration**: 2 minutes

**Notes**:

* Added HN Algolia API constants, current-window defaults, keyword caps, and typed search response fields.
* Preserved the existing Firebase top-stories type definitions.

**Files Changed**:

* `scripts/extensions/trend-finder/sources/hn-types.ts` - added HN Algolia constants and response types.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/tasks.md` - marked T011 complete.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/implementation-notes.md` - logged T011 progress.

**BQC Fixes**:

* Contract alignment: Algolia response shape is typed separately from Firebase item shape.

***

### Task T012 - Add HN Algolia Keyword Collection Path

**Started**: 2026-06-14 15:55 **Completed**: 2026-06-14 16:06 **Duration**: 11 minutes

**Notes**:

* Added HN Algolia keyword search with reviewed keyword-window terms, current-only numeric date filter, sequential request pacing, timeout/retry handling, and schema validation.
* Preserved the existing Firebase top-stories flow as a reusable fallback.
* Added HN Algolia normalization that excludes author usernames, comment text, story text, raw snippets, and raw JSON.
* Direct readiness now records empty, rate-limited, timeout, offline, and not-ready states before fallback results are returned.

**Files Changed**:

* `scripts/extensions/trend-finder/sources/hn-adapter.ts` - added Algolia keyword path and fallback routing.
* `scripts/extensions/trend-finder/normalize.ts` - added HN Algolia normalization helper.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/tasks.md` - marked T012 complete.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/implementation-notes.md` - logged T012 progress.

**BQC Fixes**:

* Failure path completeness: Algolia empty/error/rate-limit/timeout states fall back to the existing top-stories path with explicit diagnostics.
* Error information boundaries: author, story text, comment text, raw Algolia JSON, and query details are not emitted to browser evidence.
* State freshness on re-entry: HN direct behavior uses the frozen readiness context passed by the collector when available.

***

### Task T013 - Add Direct Source Normalization Helpers

**Started**: 2026-06-14 15:24 **Completed**: 2026-06-14 16:08 **Duration**: 44 minutes

**Notes**:

* Added direct normalizers for arXiv, GitHub repositories, RSS feed items, and HN Algolia hits while implementing the direct adapters.
* Tightened HN Algolia URL projection to use the shared public HTTP URL validator with HN item URL fallback.
* Normalizers keep existing source IDs and emit bounded snippets, public URLs, public metrics, dates, and source-local defaults only.

**Files Changed**:

* `scripts/extensions/trend-finder/normalize.ts` - added direct source input types and normalization helpers.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/tasks.md` - marked T013 complete.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/implementation-notes.md` - logged T013 progress.

**BQC Fixes**:

* Contract alignment: direct normalizers emit the existing `TrendEvidenceItem` shape and stable source IDs.
* Error information boundaries: raw provider payloads, private URLs, token-like data, contact fields, and comment/full-text fields are not projected into browser evidence.

***

### Task T014 - Link Direct Adapters To Apify Fallback Metadata

**Started**: 2026-06-14 16:08 **Completed**: 2026-06-14 16:13 **Duration**: 5 minutes

**Notes**:

* Added optional `directFallback` metadata to Trend Finder Apify source declarations.
* Linked `github-ai-repositories`, `arxiv-ai-papers`, and `rss-ai-news` to their matching direct source IDs.
* Corrected an initial metadata insertion so unrelated Reddit declarations remain unchanged.

**Files Changed**:

* `scripts/extensions/trend-finder/sources/types.ts` - added optional Apify `directFallback` metadata contract.
* `scripts/extensions/trend-finder/sources/apify-source-config.ts` - added direct fallback metadata to GitHub, arXiv, and RSS declarations.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/tasks.md` - marked T014 complete.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/implementation-notes.md` - logged T014 progress.

**BQC Fixes**:

* Contract alignment: direct fallback IDs match existing stable Apify source IDs.
* Duplicate action prevention: metadata now identifies which Apify source is eligible for direct-success suppression.

***

### Task T015 - Add Apify Skip Handling For Direct-Active Sources

**Started**: 2026-06-14 16:13 **Completed**: 2026-06-14 16:20 **Duration**: 7 minutes

**Notes**:

* Extended Apify collection dependencies with direct fallback decisions and direct-active source IDs.
* Added pre-run skip handling so matching Apify fallback sources are skipped before Actor calls when direct collection succeeded.
* Added explicit skipped fallback source and spend summaries with bounded warning messages.

**Files Changed**:

* `scripts/extensions/trend-finder/sources/apify-adapter.ts` - added direct-active Apify skip handling and skipped fallback summaries.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/tasks.md` - marked T015 complete.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/implementation-notes.md` - logged T015 progress.

**BQC Fixes**:

* Duplicate action prevention: matching Apify fallback sources are skipped before paid Actor calls when direct source collection succeeds.
* Failure path completeness: skipped fallbacks return explicit warnings and spend summaries instead of silent omission.
* Error information boundaries: skip summaries expose source IDs and safe reasons only, not Actor IDs, Dataset IDs, tokens, or run payloads.

***

### Task T025 - Final Validation

**Started**: 2026-06-14 15:31 **Completed**: 2026-06-14 15:38 **Duration**: 7 minutes

**Notes**:

* Ran all focused direct-source, Apify fallback, source setup, collector, spend, and Source Setup panel tests.
* Ran script and app TypeScript checks.
* Ran targeted Prettier format check.
* Ran aggregate extension smoke with explicit no-Apify credentials, direct public API sources disabled, and mocked HN fetch; the collector completed as `ready` without Actor calls.
* Ran private runtime artifact check and ASCII scan for all session-touched files.
* A full `bun run aggregate` attempt was stopped after the project env loader picked up local Apify credentials; the replacement explicit-env extension smoke is the no-Apify validation result for this session.

**Files Changed**:

* `scripts/extensions/trend-finder/collector.ts` - added missing optional env declaration for `TREND_FINDER_ARCHIVE_RETENTION_DAYS` found by the explicit-env smoke.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/tasks.md` - marked T025 complete and checked completion checklist.
* `.spec_system/specs/phase28-session14-direct-first-party-source-adapters/implementation-notes.md` - logged T025 and session completion.

**Validation Commands**:

* `bun x vitest run scripts/extensions/trend-finder/sources/__tests__/direct-source-utils.test.ts scripts/extensions/trend-finder/sources/__tests__/arxiv-adapter.test.ts scripts/extensions/trend-finder/sources/__tests__/apify-adapter.test.ts scripts/extensions/trend-finder/sources/__tests__/source-setup.test.ts scripts/extensions/trend-finder/__tests__/spend-accounting.test.ts scripts/extensions/trend-finder/__tests__/collector.test.ts src/extensions/trend-finder/components/__tests__/source-setup-panel.test.tsx`
* `bun x tsc -p tsconfig.scripts.json`
* `bun x tsc -p tsconfig.json`
* `bun x prettier --check scripts/extensions/trend-finder/collector.ts`
* `bun --eval '<explicit-env no-Apify aggregate extension smoke>'`
* `bash scripts/check-private-runtime-artifacts.sh`
* `perl -ne 'if (/[^\\x00-\\x7F]/) { print \"$ARGV:$.:$_\" }' <session files>`

**Result**:

* Focused tests: 78 passed.
* Script and app TypeScript checks passed.
* Format check passed.
* Explicit-env no-Apify aggregate extension smoke passed with `trend-finder` status `ready`.
* Private runtime artifact check passed.
* ASCII scan returned no output.

**BQC Fixes**:

* Contract alignment: optional env declaration now includes every collector env key read during the aggregate extension smoke.
* Trust boundary enforcement: final no-Apify smoke used explicit env and mocked HN fetch to avoid loading local Apify credentials.

***

## Session Completion Summary

**Completed**: 2026-06-14 15:38

**Summary**:

* Implemented direct-first public source adapters for arXiv, GitHub repository search, reviewed RSS feeds, and HN Algolia keyword search.
* Added shared direct-source utilities for safe fetch/retry/timeout/abort handling, public URL validation, XML/JSON parsing, keyword bounding, and diagnostic redaction.
* Added frozen direct readiness, fallback decisions, direct-vs-Apify source setup status, public API zero-cost spend rows, and duplicate Apify fallback suppression.
* Updated browser schemas, view-model labels, and Source Setup rendering for direct readiness and fallback labels.
* Updated source compliance/onboarding/docs and added focused test coverage for utilities, adapters, collector routing, Apify skip behavior, source setup, spend, and UI rendering.

**Ready For**:

* Validate workflow step.


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