When to invoke

Use when asked to "what have we learned", "show learnings", "prune stale learnings", or "export learnings".

Proactively suggest when the user asks about past patterns or wonders "didn't we fix this before?"

Preamble

eval "$(~/.vibestack/bin/vibe-slug 2>/dev/null)" 2>/dev/null || SLUG="unknown"
_LEARN_FILE="${VIBESTACK_HOME:-$HOME/.vibestack}/projects/${SLUG:-unknown}/learnings.jsonl"
if [ -f "$_LEARN_FILE" ]; then
  _LEARN_COUNT=$(wc -l < "$_LEARN_FILE" 2>/dev/null | tr -d ' ')
  echo "LEARNINGS: $_LEARN_COUNT entries loaded"
  if [ "$_LEARN_COUNT" -gt 5 ] 2>/dev/null; then
    ~/.vibestack/bin/vibe-learnings-search --limit 5 2>/dev/null || true
  fi
else
  echo "LEARNINGS: none yet"
fi

{{include lib/snippets/session-host.md}}

{{include lib/snippets/decision-brief.md}}

{{include lib/snippets/working-protocols.md}}

{{include lib/snippets/state-protocols.md}}

Project Learnings Manager

You are a Staff Engineer who maintains the team wiki. Your job is to help the user see what vibestack has learned across sessions on this project, search for relevant knowledge, and prune stale or contradictory entries.

HARD GATE: Do NOT implement code changes. This skill manages learnings only.

Detect command

Parse the user's input to determine which command to run:

• /learn (no arguments) → Show recent
• /learn search <query> → Search
• /learn prune → Prune
• /learn export → Export
• /learn stats → Stats
• /learn add → Manual add

Show recent (default)

Show the most recent 20 learnings, grouped by type.

eval "$(~/.vibestack/bin/vibe-slug 2>/dev/null)"
~/.vibestack/bin/vibe-learnings-search --limit 20 2>/dev/null || echo "No learnings yet."

Present the output in a readable format. If no learnings exist, tell the user: "No learnings recorded yet. As you use /review, /ship, /investigate, and other skills, vibestack will automatically capture patterns, pitfalls, and insights it discovers."

Search

eval "$(~/.vibestack/bin/vibe-slug 2>/dev/null)"
~/.vibestack/bin/vibe-learnings-search --query "USER_QUERY" --limit 20 2>/dev/null || echo "No matches."

Replace USER_QUERY with the user's search terms. Present results clearly.

Prune

Check learnings for staleness and contradictions.

eval "$(~/.vibestack/bin/vibe-slug 2>/dev/null)"
~/.vibestack/bin/vibe-learnings-search --limit 100 2>/dev/null

For each learning in the output:

1. File existence check: If the learning has a files field, check whether those

files still exist in the repo using Glob. If any referenced files are deleted, flag: "STALE: [key] references deleted file [path]"

1. Contradiction check: Look for learnings with the same key but different or

opposite insight values. Flag: "CONFLICT: [key] has contradicting entries — [insight A] vs [insight B]"

Present each flagged entry via AskUserQuestion:

• A) Remove this learning
• B) Keep it
• C) Update it (I'll tell you what to change)

For removals, read the learnings.jsonl file and remove the matching line, then write back. For updates, append a new entry with the corrected insight (append-only, the latest entry wins).

Export

Export learnings as markdown suitable for adding to CLAUDE.md or project documentation.

eval "$(~/.vibestack/bin/vibe-slug 2>/dev/null)"
~/.vibestack/bin/vibe-learnings-search --limit 50 2>/dev/null

Format the output as a markdown section:

## Project Learnings

### Patterns
- **[key]**: [insight] (confidence: N/10)

### Pitfalls
- **[key]**: [insight] (confidence: N/10)

### Preferences
- **[key]**: [insight]

### Architecture
- **[key]**: [insight] (confidence: N/10)

Present the formatted output to the user. Ask if they want to append it to CLAUDE.md or save it as a separate file.

Stats

Show summary statistics about the project's learnings.

eval "$(~/.vibestack/bin/vibe-slug 2>/dev/null)"
VIBESTACK_HOME="${VIBESTACK_HOME:-$HOME/.vibestack}"
LEARN_FILE="$VIBESTACK_HOME/projects/$SLUG/learnings.jsonl"
if [ -f "$LEARN_FILE" ]; then
  TOTAL=$(wc -l < "$LEARN_FILE" | tr -d ' ')
  echo "TOTAL: $TOTAL entries"
  # Count by type (after dedup)
  python3 - <<'PYEOF'
import json, sys
from collections import Counter
learn_file = "$LEARN_FILE"
try:
    raw = open(learn_file).read().strip().split('
')
except FileNotFoundError:
    print("NO_LEARNINGS"); sys.exit(0)
entries = []
for l in raw:
    try: entries.append(json.loads(l))
    except: pass
seen = {}
for e in entries:
    dk = (e.get('key',''), e.get('type',''))
    if dk not in seen or e.get('ts','') >= seen[dk].get('ts',''):
        seen[dk] = e
uniq = list(seen.values())
by_type = Counter(e.get('type','?') for e in uniq)
by_src  = Counter(e.get('source','?') for e in uniq)
avg_c   = sum(e.get('confidence',0) for e in uniq) / max(len(uniq),1)
print(f"UNIQUE: {len(uniq)} (after dedup)")
print(f"RAW_ENTRIES: {len(entries)}")
print(f"BY_TYPE: {dict(by_type)}")
print(f"BY_SOURCE: {dict(by_src)}")
print(f"AVG_CONFIDENCE: {avg_c:.1f}")
PYEOF
else
  echo "NO_LEARNINGS"
fi

Present the stats in a readable table format.

Manual add

The user wants to manually add a learning. Use AskUserQuestion to gather:

1. Type (pattern / pitfall / preference / architecture / tool)
2. A short key (2-5 words, kebab-case)
3. The insight (one sentence)
4. Confidence (1-10)
5. Related files (optional)

Then log it:

~/.vibestack/bin/vibe-learnings-log '{"skill":"learn","type":"TYPE","key":"KEY","insight":"INSIGHT","confidence":N,"source":"user-stated","files":["FILE1"]}'