The visible layer of R2 (R2a landed the data layer @ 7a15803). A pure
rankForBrief (pillar-overlap -> recency over the store, publishedAt ?? capturedAt
freshness, 7d window) + renderBrief (dated Markdown with a hook-surfaceable
summary frontmatter) + briefSummary (one summary source) + defaultBriefDir
(derived from defaultStorePath). CLI `brief` writes the dated file; session-start
surfaces the latest, zero-tsx. Wired into trend-spotter (scan->capture->brief->
surfaced). No store-schema change, no scoring change, no scheduler (R3).
Light-Voyage hardened: scope-guardian ALIGNED (0); brief-reviewer
PROCEED_WITH_RISKS; plan-critic REVISE (2 blockers, 5 majors, 4 minors) — all
folded (briefSummary single source, wrong-value RED stubs, --out !== "true"
guard, defaultBriefDir derives from defaultStorePath, two-gate split since the
hook suite is not in test-runner.sh, url-asc total order). Go-gate: WIRE +
English "## Morning Brief" heading.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VmHCQjJHUyWwxGAVVjNLgp
R2 ("the visible topic-stream") split into two sequenced slices at the
2026-06-24 go-gate, foundation-first: R2a (this — the pure scripts/trends/
data layer) before R2b (dated morning-brief + session-start surfacing).
R2a builds the item→store bridge RE-R1 deferred: a pure itemToInput mapping
the validated TrendItem envelope to a store input (injecting capturedAt,
carrying publishedAt), a publishedAt schema bump (SCHEMA_VERSION 1→2) with a
lossless forward migrate-on-load, and a `capture` CLI closing the
poll→normalize→store loop. No scoring change, no hook touch.
Go-gate: WIRE (operator) — re-point trend-spotter Step 4.5 add→capture +
Section 16h grep/self-test. Q2 publishedAt-merge = first-sight, no back-fill.
Light-Voyage hardened: scope-guardian ALIGNED, brief-reviewer
PROCEED_WITH_RISKS, plan-critic REVISE — all folded (BLOCKER: v2-idempotence
is GREEN-only not RED; capture tally mapped exactly onto AddResult; "lossless"
scoped to well-formed stores; add --published-at deferred; README framing fix).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VmHCQjJHUyWwxGAVVjNLgp
Research engine lifted to Tier-1 (operator 2026-06-24): the daily workflow
rests on a steady stream of topic suggestions, and research is the only
subsystem whose core logic (poll/score/digest) is ungated prose in
agents/trend-spotter.md rather than tested code.
RE-R1 (rung-2, slice 1): B1 canonical item envelope + normalizer
(scripts/trends/src/item.ts) and B2 deterministic triage-scorer
(score.ts — composite/band/triage, owns only the arithmetic; the five
1-10 dimension scores stay model judgment), plus a stdin/JSON CLI seam,
tests, a trend-spotter prose pointer, and gate-floor bumps. No
store-schema change (SCHEMA_VERSION stays 1). The visible morning-brief
stream (B3 + surfacing) is R2.
Light-Voyage hardened: scope-guardian ALIGNED; plan-critic blocker + 6
majors folded — incl. TrendItem does NOT map directly onto TrendInput
(capturedAt vs publishedAt → store bridge deferred to R2), CLI reads
stdin (no --json overload), gate Section 16g before the anti-erosion
Section 18, ASSERT floor recount-not-pinned, band thresholds + action
strings drift-pinned, wiring grep literal src/cli.ts score.
No code touched yet — awaiting operator go-gate on the plan.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RigJBiRFNtFZKCz21qNbQ4
