Kjell Tore Guttormsen
7a158030b6
Closes the research-engine capture loop RE-R1 deferred:
- itemToInput(item, capturedAt): pure envelope→TrendInput bridge in item.ts —
injects capturedAt, carries publishedAt verbatim; no id, no re-validate
- publishedAt persisted: TrendRecord/TrendInput gain it; addTrend conditional-spread,
first-sight kept on re-capture (no back-fill). SCHEMA_VERSION 1→2 with a lossless
forward migrate-on-load: Math.max(onDisk, current) + numeric-typeof coercion
(string/NaN/absent → current; non-array trends coercion preserved verbatim)
- `capture` CLI: stdin raw item|batch → normalize → bridge → addTrend → saveStore once;
tally {added,duplicates,merged,errors} from AddResult; content-invalid → errors[],
exit 2 only on bad stdin; --json summary
- wiring: trend-spotter.md Step 4.5 N×`add` → one normalizing `capture` batch; README
add/capture framing corrected; test-runner Section 16h (capture wiring, unconditional)
+ floors bumped (trends 62→79, ASSERT 87→90)
TDD: 17 new tests (12 genuinely-RED logic-RED + 5 regression guards), tsc clean,
gate 105/0/0. No version bump (additive, v0.5.2 dev).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VmHCQjJHUyWwxGAVVjNLgp
84 lines
3.4 KiB
Markdown
84 lines
3.4 KiB
Markdown
# linkedin-trends-store
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Persistent **trend store** — the foundation layer of the research engine
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(retning §5). A topic-tagged, provenance-bearing inventory of trend signals
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captured over time, so the engine accumulates **history** instead of starting
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amnesiac each session.
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Twin of [`scripts/specifics-bank`](../specifics-bank): same deterministic
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store / dedup / query discipline, different dedupe key — a trend is identified by
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its **normalized title+URL**, not by free-text content.
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## Generic by architecture
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Nothing niche-specific lives here. A `TrendRecord` carries free-form `topics`
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tags and a free-form `source` string; *which* topics matter and *which* sources
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to poll are decided upstream (config/profile + the capture agent), never
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hard-coded in this module. The same store serves any niche.
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## Data location
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The store lives under the per-user data dir (M0 data-path convention), so trend
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history survives plugin upgrades/reinstalls:
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```
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${LINKEDIN_STUDIO_DATA:-$HOME/.claude/linkedin-studio}/trends/trends.json
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```
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`LINKEDIN_STUDIO_DATA` overrides the root. No path is hard-coded in prose.
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## Record shape (minimal generic core)
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```ts
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interface TrendRecord {
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id: string; // sha256(normalized title+url).slice(0,12) — also the dedupe key
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title: string; // headline, verbatim
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url: string; // source URL, verbatim
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source: string; // "tavily" | "websearch" | "manual" | <mcp-name>
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capturedAt: string; // ISO-8601 date — when WE captured it
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publishedAt?: string;// optional source publish date (ISO-8601); distinct from capturedAt, first-sight, never back-filled
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topics: string[]; // query tags; unioned across re-captures
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summary?: string; // optional, verbatim
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}
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```
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Fields (relevance score, first-mover timing, status) can be added in a later
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slice without breaking the shape.
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## CLI
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```bash
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# Capture freshly-polled trends — the NORMALIZING BATCH path (the research agent's path):
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# raw items on stdin → validate+normalize each → dedupe on title+url → union topics on
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# re-capture → persist the source's publishedAt. Content-invalid items are reported in the
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# summary errors[], never fail the run; the summary is {added, duplicates, merged, errors}.
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echo '[{"source":"tavily","title":"Agentic workflows hit production",
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"url":"https://example.com/agentic","topics":["agents","engineering"],
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"publishedAt":"2026-06-20","summary":"Teams ship multi-step agents past the demo stage."}]' \
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| node --import tsx src/cli.ts capture [--store <path>] [--json]
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# Add a SINGLE trend MANUALLY — raw flags, no normalization, publish-date-free:
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node --import tsx src/cli.ts add \
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--title "Agentic workflows hit production" \
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--url "https://example.com/agentic" \
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--topics "agents,engineering" --source tavily \
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--summary "Teams ship multi-step agents past the demo stage."
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# Topic-scoped history — trends matching these topics, ranked by overlap then recency
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node --import tsx src/cli.ts query --topics "agents,engineering" [--json]
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# Time-scoped history — newest first, optionally windowed/capped
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node --import tsx src/cli.ts list [--since 2026-06-01] [--limit 10] [--json]
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```
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Both `capture` and `add` dedupe on normalized title+url — re-capturing the same trend
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never appends a duplicate, it only unions any new topics in.
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## Tests
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```bash
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cd scripts/trends
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npm install
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npm test # deterministic store: normalize/id, load/save, dedup+union, query, history
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npm run build
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```
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