Memory

Memory

Persistent memory system: automatic capture of observations, session summaries, memory search

When to use

• "what did I do yesterday?" / "what happened last week?"
• "remember this" / "save this decision"
• "memory stats" / "show memory"
• "search memory" / "find sessions about X"

Architecture

PostToolUse hook → observations (local JSONL)
SessionEnd hook → session summary (local + git)
SessionStart hook → inject context (auto)

Hybrid storage:

• Observations (raw) → ~/.claude-memory/observations/ (local)
• Session summaries → $PROJECT_ROOT/memory/sessions/ (git)

Paths

What	Path
Observations (local)	~/.claude-memory/observations/
Sessions (local)	~/.claude-memory/sessions/
Sessions (git)	$PROJECT_ROOT/memory/sessions/
Session index	$PROJECT_ROOT/memory/index.md
Search tool	~/.claude-memory/hooks/memory-search.sh
Hook scripts	~/.claude-memory/hooks/
Config	~/.claude-memory/config.json

How to execute

Search observations

# By type
~/.claude-memory/hooks/memory-search.sh --type crm_update --days 7

# By project
~/.claude-memory/hooks/memory-search.sh --project $PROJECT_ROOT --days 30

# By tags
~/.claude-memory/hooks/memory-search.sh --tags crm,leads --days 14

# Text search
~/.claude-memory/hooks/memory-search.sh --query "Acme Corp" --days 30

# Full details
~/.claude-memory/hooks/memory-search.sh --query "Acme" --full

# By session
~/.claude-memory/hooks/memory-search.sh --session abc12345

Statistics

~/.claude-memory/hooks/memory-search.sh --stats

List sessions

~/.claude-memory/hooks/memory-search.sh --sessions

Save a decision manually

echo '{"id":"obs-'$(date +%Y%m%d)'-'$(openssl rand -hex 4)'","timestamp":"'$(date -u +%Y-%m-%dT%H:%M:%SZ)'","session_id":"CURRENT_SESSION","type":"decision","tool":"manual","summary":"DECISION_DESCRIPTION","context":{},"project":"$PROJECT_ROOT","tags":["TAG1"]}' >> ~/.claude-memory/observations/observations-$(date +%Y-%m-%d).jsonl

Read a specific session

cat $PROJECT_ROOT/memory/sessions/YYYY-MM-DD-SESSION_ID.md

Observation types

Type	When
feature	New functionality
bugfix	Bug fix
decision	Architectural/business decision
discovery	New knowledge about the system
change	General change (git, PR)
outreach	Communication through channels
crm_update	CRM data change
config	Configuration change
skill_update	Skill change
retrospective	Quality assessment: what worked, what didn't, what to change

Retrospective (convention)

At the end of a session or after a significant task, Claude records a retrospective observation:

echo '{"id":"obs-'$(date +%Y%m%d)'-'$(openssl rand -hex 4)'","timestamp":"'$(date -u +%Y-%m-%dT%H:%M:%SZ)'","session_id":"SESSION_ID","type":"retrospective","tool":"manual","summary":"RETROSPECTIVE TEXT","context":{},"project":"$PROJECT_ROOT","tags":["retro"]}' >> ~/.claude-memory/observations/observations-$(date +%Y-%m-%d).jsonl

What to record:

• What went wrong and why
• Which skill/tool didn't work or is incomplete
• What should be changed for the next session
• Important insights about the process

Summary format: one sentence, specific. For example:

• "telegram-send: need to check bot access before bulk sending"
• "change-review was skipped before PR — add a reminder"
• "CSV parsing via csv.DictReader breaks on empty rows — use pandas"

When to record:

• Session had errors or rework
• Found a gap in a skill or tool
• Made a decision that affects future sessions

Retrospective automatically:

• Gets included in session summary (section ## Retrospective)
• Gets injected into the next session (section ## Last retro in context)

Privacy

4 layers of protection:

1. <private>...</private> tags → stripped before saving
2. Pattern matching (token, password, api_key, Bearer)
3. Sensitive files (.env, credentials.json, token.json) → ignored
4. Sensitive commands (export TOKEN/SECRET) → redacted

Maintenance

Rotation (manual, once a month)

mkdir -p ~/.claude-memory/observations/archive
find ~/.claude-memory/observations -name "observations-*.jsonl" -mtime +30 -exec mv {} ~/.claude-memory/observations/archive/ \;

Disk usage

du -sh ~/.claude-memory/
du -sh $PROJECT_ROOT/memory/

Commit session summaries

cd $PROJECT_ROOT
git checkout -b update/memory-sessions-$(date +%Y-%m-%d)
git add memory/
git commit -m "Add session summaries for $(date +%Y-%m-%d)"
git push -u origin update/memory-sessions-$(date +%Y-%m-%d)
gh pr create --title "Memory: session summaries $(date +%Y-%m-%d)" --body "Auto-generated session summaries"
gh pr merge --squash --delete-branch
git checkout main && git pull

Hooks (automatic)

Hook	Event	What it does
session-start.sh	SessionStart	Inject context from past sessions
post-tool-use.sh	PostToolUse (Edit/Write/Bash)	Records observations
session-end.sh	SessionEnd + PreCompact	Generates session summary

Related skills

• daily-briefing — morning context (includes memory)
• show-today — today's tasks
• query-leads — CRM search
• log-activity — activity logging (complements observations)