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Get Started Free →Reconstruct what happened in a past core session — from a high-level summary down to verbatim owner quotes — by reading the raw session transcripts (complete, crash-proof, unbiased), not the curated relay/handoff notes.
.claude/skills/sonichi-session-recap/SKILL.md| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-07 | ✗→✓ | ▲ Improved | 8% | 0% |
| case-09 | ✗→✓ | ▲ Improved | 63% | 0% |
| case-10 | ✗→✓ | ▲ Improved | 38% | 0% |
| case-11 | ✗→✓ | ▲ Improved | 3% | 0% |
| case-14 | ✗→✓ | ▲ Improved | 12% | 0% |
Reconstruct what happened in a past core session — from a high-level summary down to verbatim owner quotes — by reading the raw session transcripts (complete, crash-proof, unbiased), not the curated relay/handoff notes.
Usage: /session-recap [last | <session-uuid-prefix> | list] [detail hint]
Notes remain useful as a fast index into a long session — nothing more.
python3 skills/session-recap/scripts/extract.py list prints recent sessions (newest first: file uuid, start/end ISO, message counts, first user line). Cross-check with <workspace>/state/session-starts.log (one JSONL line per core boot; consecutive entries bound a session). "last" = the second-newest transcript (newest = the running session).python3 skills/session-recap/scripts/extract.py dump --session last --filter dialog --max-chars 0 → chronological [ts] USER:/ASSISTANT: stream. --filter user for owner messages only (verbatim-quote lookups: just grep this). --filter all adds tool-call names + system lines when the recap needs to cover actions, not just conversation. --max-chars 0 = no cap.model: haiku, hand it the dump (or the dump file path if huge — have it Read in slices), and ask for: timeline, tasks processed + outcomes, PRs/commits, decisions, errors + fixes, artifacts (files/notes/memories written — the dump's Write(path)/Edit(path) tool lines carry the paths; owner requirement 2026-07-13), loose ends. Match the detail level the owner asked for. Drop routine operational noise (owner rule 2026-07-13): battery-escalation ladders, idle proactive-loop passes, quota checks, watcher restarts, memory syncs, health-check green runs — none of it belongs in a recap unless it materially changed the session's course (e.g. quota exhaustion forced a pivot, a crash lost work).--filter user dump and quote directly.Any work-summary the recap produces — boot catchup, human brief, or an on-demand "summarize what I did" — MUST cover these sections (scale depth to the request, but never drop a section that applies):
Write/Edit tool lines), loose ends. When the owner asks for "more detail," expand this — specific findings, exact fixes, reproductions, CI/tooling mechanics — not just more headlines.roadmap/ROADMAP.md): which track/lane it advances and how (e.g. "closes Track-14 gap (a)"), plus a pointer to the relevant plan doc.Save durable work-summaries under <workspace>/notes/work-summaries/YYYY-MM-DD.md (owner-created folder 2026-07-13), one file per summary, each opening with a *[workflow, summary] — author | window | requested-by* line.
Primary consumer: the next session's agent (owner 2026-07-13). The boot recap is how the fresh core catches up properly — deeper and less biased than relay notes (which are short, curated, and lost on crash-exits). The human-facing room post is the secondary product.
On each core boot, /schedule-crons' final step runs this skill twice-in-one:
<workspace>/state/last-session-recap.md so anything else can read it.recap_room is set in <workspace>/hosts/<hostname>/recap.json (sibling of crons.json, which stays a bare job list) and a previous session transcript exists, produce a ~10-line recap of the previous session — what shipped, key decisions, owner asks left open, artifacts written; routine ops dropped — and post it to recap_room via gateway op:message. Privacy (owner rule 2026-07-13): recap_room MUST be a private, owner-only room — a recap can contain anything from a session (drafts, credentials context, private conversations). Never point it at a shared/team room; when in doubt, skip the post and leave the recap on disk under data/session-recaps/. Idempotence: stamp <workspace>/state/last-recap-session.txt with the recapped session uuid; skip if it already names that session (protects mid-session /schedule-crons re-runs from duplicate posts). Deep recaps stay on-demand.<workspace>/.claude-sutando/projects/<repo-slug>/*.jsonl (the script resolves it).list table's message counts make them easy to spot and skip.| Case | Status | Duration (ms) | Turns | Tokens | Tool calls | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Without | With | Δ | Without | With | Δ | Without | With | Δ | Without | With | Δ | ||
case-01 | fail→fail | 14,337 | 14,900 | +4% | 1 | 1 | 0% | 1,967 | 1,819 | -8% | 0 | 0 | — |
case-02 | fail→fail | 2,779 | 5,038 | +81% | 1 | 1 | 0% | 346 | 1,861 | +438% | 0 | 0 | — |
case-03 | fail→fail | 3,735 | 4,847 | +30% | 1 | 1 | 0% | 581 | 1,879 | +223% | 0 | 0 | — |
case-04 | fail→fail | 7,558 | 4,869 | -36% | 1 | 1 | 0% | 1,107 | 1,853 | +67% | 0 | 0 | — |
case-05 | pass→pass | 7,803 | 4,821 | -38% | 1 | 1 | 0% | 1,436 | 2,368 | +65% | 0 | 0 | — |
case-06 | pass→pass | 19,288 | 10,031 | -48% | 1 | 1 | 0% | 3,203 | 3,202 | -0% | 0 | 0 | — |
case-07 | fail→pass | 12,760 | 3,090 | -76% | 1 | 1 | 0% | 1,983 | 2,133 | +8% | 0 | 0 | — |
case-08 | pass→pass | 12,930 | 2,209 | -83% | 1 | 1 | 0% | 1,883 | 1,935 | +3% | 0 | 0 | — |
case-09 | fail→pass | 8,428 | 2,200 | -74% | 1 | 1 | 0% | 1,183 | 1,925 | +63% | 0 | 0 | — |
case-10 | fail→pass | 20,865 | 3,059 | -85% | 1 | 1 | 0% | 1,488 | 2,049 | +38% | 0 | 0 | — |
case-11 | fail→pass | 12,008 | 2,191 | -82% | 1 | 1 | 0% | 1,857 | 1,909 | +3% | 0 | 0 | — |
case-12 | fail→fail | 11,189 | 2,725 | -76% | 1 | 1 | 0% | 1,811 | 2,052 | +13% | 0 | 0 | — |
case-13 | pass→pass | 12,971 | 2,006 | -85% | 1 | 1 | 0% | 2,065 | 1,899 | -8% | 0 | 0 | — |
case-14 | fail→pass | 14,316 | 4,531 | -68% | 1 | 1 | 0% | 2,079 | 2,330 | +12% | 0 | 0 | — |
case-15 | pass→fail | 9,109 | 2,899 | -68% | 1 | 1 | 0% | 1,497 | 2,057 | +37% | 0 | 0 | — |
case-16 | fail→fail | 11,842 | 1,822 | -85% | 1 | 1 | 0% | 1,920 | 1,944 | +1% | 0 | 0 | — |
case-17 | fail→fail | 12,599 | 1,770 | -86% | 1 | 1 | 0% | 2,014 | 1,844 | -8% | 0 | 0 | — |
case-18 | fail→pass | 11,195 | 1,983 | -82% | 1 | 1 | 0% | 1,651 | 1,901 | +15% | 0 | 0 | — |
case-19 | fail→pass | 13,779 | 2,134 | -85% | 1 | 1 | 0% | 2,055 | 1,916 | -7% | 0 | 0 | — |
case-20 | fail→pass | 14,488 | 1,741 | -88% | 1 | 1 | 0% | 2,215 | 1,826 | -18% | 0 | 0 | — |
case-21 | fail→pass | 19,615 | 1,358 | -93% | 1 | 1 | 0% | 3,208 | 1,812 | -44% | 0 | 0 | — |
case-22 | pass→pass | 7,302 | 1,653 | -77% | 1 | 1 | 0% | 1,122 | 1,845 | +64% | 0 | 0 | — |
case-23 | pass→fail | 8,314 | 2,784 | -67% | 1 | 1 | 0% | 1,289 | 1,924 | +49% | 0 | 0 | — |
DecimalAI ran this skill against gemini-3.6-flash twice over the same eval suite — once with the skill loaded and once without — and compared the two runs case by case. 23 cases were attempted, and 19 counted toward the lift figure. The other 4 produced results that are not comparable between the two arms, so they are excluded from the headline rather than averaged into it. The headline lift of +30 percentage points is the difference between those two pass rates over the 19 comparable cases. 3 cases got worse with the skill loaded, and they are included in that figure.
Without the skill loaded, the model failed this case. With it loaded, the same prompt on the same model passed. This is one improved case from the latest verified run; every case, including any that regressed, is in the table above.
Other measured skills in the registry, with their headline benchmark lift.