weekly-digests skill

Weekly Digests

Produce a serial, multi-chapter narrative digest of a project's complete claude-mem history. Differs from timeline-report (one long report) — this generates one digest per ISO week, with each subagent reading the prior week's carry-forward block so the story stays coherent.

The chapter count equals the number of ISO weeks the timeline covers. A project with 2 weeks of data produces 2 chapters; one with 30 weeks produces 30. There is no fixed length — count the weeks first, then drive the pipeline off that count.

When to Use

Trigger when the user asks for:

• "Weekly digests"
• "Week-by-week story"
• "Serial timeline"
• "Story chapters of [project]"
• "Run a digest for each week"
• "Continue the story week by week"

If the user wants a single sweeping report, use timeline-report instead. This skill is for serial chapter format.

Prerequisites

• claude-mem worker running
• Project has at least one ISO week of observations (the pipeline degenerates gracefully — even N=1 works)
• A clean output directory the user is comfortable writing into

Resolve the worker port (do this once, reuse $WORKER_PORT):

WORKER_PORT="${CLAUDE_MEM_WORKER_PORT:-$(node -e "const fs=require('fs'),p=require('path'),os=require('os');const uid=(typeof process.getuid==='function'?process.getuid():77);const fallback=String(37700+(uid%100));try{const s=JSON.parse(fs.readFileSync(p.join(os.homedir(),'.claude-mem','settings.json'),'utf-8'));process.stdout.write(String(s.CLAUDE_MEM_WORKER_PORT||fallback));}catch{process.stdout.write(fallback);}" 2>/dev/null)}"

Workflow

Step 1: Determine the Project Name

Same worktree-detection pattern as timeline-report. In a worktree, the data source is the parent project:

git_dir=$(git rev-parse --git-dir 2>/dev/null)
git_common_dir=$(git rev-parse --git-common-dir 2>/dev/null)
if [ "$git_dir" != "$git_common_dir" ]; then
  parent_project=$(basename "$(dirname "$git_common_dir")")
else
  parent_project=$(basename "$PWD")
fi
echo "$parent_project"

Step 2: Fetch the Full Timeline and Save It

mkdir -p .scratch
curl -s "http://localhost:${WORKER_PORT}/api/context/inject?project=PROJECT_NAME&full=true" \
  > .scratch/cm-timeline.md
wc -l .scratch/cm-timeline.md

Sanity-check: confirm the file is non-empty and has the expected structure (preamble, then date headers like ### Mon DD, YYYY, then numeric observation lines and session boundary lines S (Mon DD at HH:MMpm)).

Step 3: Split the Timeline Into Per-ISO-Week Files

Write a Python script to .scratch/split-timeline.py that:

1. Parses date headers (### Mon DD, YYYY).
2. Groups days into ISO weeks via date.isocalendar() (Monday-start).
3. Emits one file per week to docs/timeline-weeks/-W--to-.md, preserving each day's section verbatim.
4. Runs a dual-pass sanity check: total observations distributed must equal the count in the source file.

Output structure (filenames illustrative):

docs/timeline-weeks/
  README.md                       # weekly index table
  YYYY-W<NN>-MonDD-to-MonDD.md    # one per ISO week the timeline covers
  ...

Each weekly file should preserve the original daily sections verbatim. Do not paraphrase at this stage — the digest agents need raw fidelity.

Count the resulting files before launching the pipeline. That count is TOTAL and drives every subsequent step. Empty weeks (zero observations between active weeks) should be skipped — the pipeline only operates on weeks that have content.

Step 4: Build the Weekly Index README

Write docs/timeline-weeks/README.md with a markdown table: Week | Dates | Observations | Sessions | File. This becomes the operator's roadmap and helps the agents understand pacing (peak weeks vs trough weeks).

Step 5: Run the Consecutive Subagent Pipeline

Critical: subagents run sequentially, NOT in parallel. Each agent receives the prior agent's carry-forward block. This is the entire point of the skill — without it you have N disjoint summaries; with it you have an N-chapter serial narrative.

Create the output directory:

mkdir -p docs/timeline-weeks/digests

For each week, in chronological order, dispatch a Task subagent (general-purpose) with this prompt template. Wait for each agent to complete before launching the next. Capture the carry-forward block from the result and inject it as STORYSOFAR into the next prompt.

Subagent Prompt Template

You are writing chapter {N} of {TOTAL} in a serial week-by-week digest of the {PROJECT} project's development history. Chapters 1 through {N-1} are written. {SPECIAL_NOTE: e.g. "This is the LARGEST week", "This is the TROUGH", "This is the FINAL chapter", "This is the ONLY chapter — both first AND final week"}.

**Source file (read in full):**
{ABSOLUTE_PATH_TO_WEEK_FILE}

**Output digest file (write):**
{ABSOLUTE_PATH_TO_DIGEST_FILE}

**Format key for the source file:**
- Numeric lines like `1 7:59p 🔵 Save hook file is empty` are observations (ID, time, type-emoji, title)
- `S##` lines are session boundaries (the user prompt that started the session)
- Emoji legend: 🎯session 🔴bugfix 🟣feature 🔄refactor ✅change 🔵discovery ⚖️decision 🚨security_alert 🔐security_note 🤫sensitive

**Story so far (carry-forward from Week {N-1}):**

{STORY_SO_FAR_BLOCK_OR_EMPTY_FOR_WEEK_1}

**Your digest must include:**
1. **Title line** — `# Week {N} ({WEEK_LABEL}): {DATE_RANGE} — [your chosen subtitle]`
2. **One-line tagline** — what this week is about, in plain English
3. **Narrative section** ({BUDGET}) — tell the story. Resolve threads from prior weeks where the data shows resolution. Introduc

Narrative Budget by Observation Count

Scale narrative length proportionally to the week's volume:

Pad these into the {BUDGET} slot of the prompt for each week.

The First Week

For Week 1, pass an empty STORYSOFAR_BLOCK and an instruction noting it's the origin chapter — the agent should establish initial cast, tone, and arcs for everyone after.

The Final Week

The final week gets a different ending: no carry-forward block. Instead, instruct the agent to write a ## Where We Are section (~250 words) naming what's still open at the moment of writing. Tell the agent the project is ongoing — the digest stops; the story doesn't. Don't give the story a false ending.

When N = 1 (single-week project)

Apply BOTH treatments to the same chapter: empty STORYSOFAR_BLOCK AND ## Where We Are instead of a carry-forward block. The agent is writing both the origin and the close in one pass. Don't reference prior or future chapters that don't exist.

Step 6: Rename Files for Sortable Order

The agents write digests with names like YYYY-W-digest.md. These already sort chronologically by ISO week (until a project crosses a year boundary inside one project name), but add a zero-padded numeric prefix so the order is unambiguous to humans browsing or scripting against the directory:

cd docs/timeline-weeks/digests
total=$(ls *.md | wc -l | tr -d ' ')
width=${#total}                  # 1 for N<10, 2 for N<100, 3 for N<1000
[ "$width" -lt 2 ] && width=2    # always pad to at least 2 for readability
i=0
for f in *.md; do
  printf -v prefix "%0${width}d" $i
  mv "$f" "${prefix}-$f"
  i=$((i+1))
done

Result for N=30: 00-...md through 29-...md. For N=4: 00-...md through 03-...md. For N=120: 000-...md through 119-...md. Always zero-pad — 1-...md and 10-...md sort wrong without it.

Do NOT also prepend the order number to the digest title line inside each file. The filename prefix is for sorting; the title stays clean: # Week N (W##): Date — Subtitle.

Step 7: Report Completion

Tell the user:

• Total weeks digested (N)
• Output directory path
• Date range covered
• Any silent/trough weeks worth flagging
• A one-sentence capstone summarizing the arc — written by the final-chapter agent, or composed by the operator from the final agent's ## Where We Are section.

Pipeline Discipline

These rules emerged from running the pipeline end-to-end. Encode them every time:

1. Sequential, not parallel. The whole point is the carry-forward chain. Parallelism breaks it.
2. Carry-forward is bounded. It will bloat without active pruning. Tell every agent: cap ~350 words, drop dormant arcs, drop absent cast.
3. Track register evolution explicitly. The user's prompt-style across weeks is a story arc. Frustration markers shift over time (whatever they happen to be in this project's data). Name the shifts.
4. Treat components as characters. Whatever recurring named systems show up in the observations are this project's villains and co-stars. Stable cast across weeks builds narrative coherence.
5. Honor silence. Trough weeks (10–100 obs) are real chapters. Name what didn't happen. Don't pad.
6. Don't manufacture drama. Just observe the data. If the project is reflexive, the recursion is the drama; you don't need to add more.
7. Final week: no false ending. The digest stops; the project doesn't. Write ## Where We Are, not "the end."

Error Handling

• Empty timeline: project name wrong, or worker not running. curl -s "http://localhost:${WORKERPORT}/api/search?query=&limit=1" to verify.
• Worker not running: start it via your usual method or check ps aux | grep worker-service.
• Subagent returns malformed carry-forward: extract the carry-forward block by regex ( carry-forward ... ) and pass forward verbatim. If missing, ask the agent to retry with the explicit instruction "your reply MUST include the carry-forward block fenced as carry-forward ... at the very end."
• One agent fails mid-pipeline: retry that week with the same carry-forward. Don't skip — the chain breaks.
• Carry-forward growing past ~500 words: tighten the discipline instruction in subsequent prompts. Force pruning explicitly.

Examples

Long-running project (~30 weeks)

User: "Make weekly digests for [project] from beginning to end"

1. Resolve worker port, detect project name.
2. Fetch full timeline → .scratch/cm-timeline.md.
3. Run .scratch/split-timeline.py → N weekly files in docs/timeline-weeks/ (e.g. 30).
4. Generate docs/timeline-weeks/README.md index.
5. Launch N subagents consecutively, one per week. Each gets the prior week's carry-forward. The first chapter starts with empty carry-forward; the final chapter writes ## Where We Are instead of a carry-forward block.
6. Rename digests with zero-padded order prefix (00-...md through 29-...md).
7. Report total chapters, date range, any troughs/peaks, and the one-line capstone the final agent produced.