Muninn Memory System - Claude Code Context

Muninn Memory System - Claude Code Context

VERSION: See SKILL.md frontmatter

⚠️ CRITICAL REQUIREMENT: VERSION BUMPING ⚠️

BEFORE ANY COMMIT TO THIS SKILL:

You MUST update metadata.version in SKILL.md frontmatter:

• Bug fixes/cleanup: Patch bump (3.3.3 → 3.3.4)
• New features/improvements: Minor bump (3.3.3 → 3.4.0)
• Breaking changes: Major bump (3.3.3 → 4.0.0)

This is MANDATORY and NON-NEGOTIABLE.

• Version changes trigger releases to users
• Committing code changes without a version bump = users don't get the update
• NO EXCEPTIONS - even trivial fixes require a version bump

Workflow:

1. Make code changes
2. Update SKILL.md frontmatter: metadata.version: X.Y.Z
3. Refresh code maps: python mapping-codebases/scripts/codemap.py /home/user/claude-skills --skip uploads,assets
4. Commit with version bump included in the same commit or separate commit
5. Push

If you forget: The PR will be rejected and you'll have to amend.

Boot

Unless message contains "skip boot", IMMEDIATELY execute:

set -a; . /mnt/project/muninn.env 2>/dev/null; set +a
python3 << 'EOF'
import sys
sys.path.insert(0, '/home/user/claude-skills')
from remembering import boot
print(boot())
EOF

Note: For Claude.ai projects, see claude-ai-project-instructions.md which uses /mnt/skills/user paths.

Meta: Using Muninn During Development

When working on this skill, USE IT for tracking development progress! Examples:

from remembering import remember, journal, recall

# Record design decisions
remember("FTS5 Porter stemmer handles morphological variants automatically", "decision",
         tags=["fts5", "search", "performance"], conf=0.9)

# Track implementation progress
journal(topics=["muninn-v0.13.0"],
        my_intent="Removed embeddings, added Porter stemmer and query expansion")

# Remember discovered issues
remember("Config read_only flag should be checked before updates", "anomaly",
         tags=["bug", "config"], conf=0.7)

# Recall related context when debugging
issues = recall("configuration", tags=["bug"], n=10)

This creates a feedback loop: improve the skill while using it to track improvements.

Quick Reference

Database: Turso SQLite via HTTP API URL: https://assistant-memory-oaustegard.aws-us-east-1.turso.io Auth: JWT token in TURSO_TOKEN environment variable

Environment Variables

Option 1: Using muninn.env file (recommended for Claude Code)

Create /mnt/project/muninn.env with your credentials:

TURSO_TOKEN=your_token_here
TURSO_URL=https://assistant-memory-oaustegard.aws-us-east-1.turso.io

The skill will automatically load this file on first use.

Option 2: Environment variables

Set these in your environment or Claude Code settings:

Priority: Environment variables → muninn.env → defaults

Architecture

Two-table design:

config table

Boot-time context loaded at conversation start.

CREATE TABLE config (
    key TEXT PRIMARY KEY,
    value TEXT,
    category TEXT,  -- 'profile', 'ops', or 'journal'
    updated_at TEXT
);

Categories:

• profile: Identity and behavior (who is Muninn, memory rules)
• ops: Operational guidance (API reference, skill delivery rules)
• journal: Session summaries for cross-conversation context

memories table

Runtime memories stored during conversations.

CREATE TABLE memories (
    id TEXT PRIMARY KEY,
    type TEXT,           -- decision, world, anomaly, experience
    t TEXT,              -- ISO timestamp
    summary TEXT,        -- the actual memory content
    confidence REAL,     -- 0.0-1.0
    tags TEXT,           -- JSON array
    entities TEXT,       -- JSON array
    refs TEXT,           -- JSON array (for versioning)
    session_id TEXT,
    created_at TEXT,
    updated_at TEXT,
    deleted_at TEXT      -- soft delete
);

Core API

from remembering import remember, recall, forget, supersede, remember_bg
from remembering import recall_since, recall_between
from remembering import config_get, config_set, config_list, profile, ops, boot
from remembering import journal, journal_recent, journal_prune
from remembering import therapy_scope, therapy_session_count, decisions_recent
from remembering import group_by_type, group_by_tag
from remembering import handoff_pending, handoff_complete
from remembering import muninn_export, muninn_import
from remembering import strengthen, weaken
from remembering import cache_stats
# v3.4.0: Type-safe results and proactive hints
from remembering import MemoryResult, MemoryResultList, VALID_FIELDS, recall_hints
# v3.5.0: GitHub access detection
from remembering import detect_github_access

# Store a memory (type required)
id = remember("User prefers dark mode", "decision", tags=["ui"], conf=0.9)
id = remember("Quick note", "world")

# Background write (non-blocking)
remember_bg("Project uses React", "world", tags=["tech"])

# Query memories - FTS5 with Porter stemmer for morphological variants
memories = recall("dark mode")  # FTS5 search with BM25 ranking
memories = recall(type="decision", conf=0.8)  # filtered by type and confidence
memories = recall(tags=["ui"])  # by tag (any match)
memories = recall(tags=["urgent", "task"], tag_mode="all")  # require all tags
# v0.13.0: Query expansion fallback automatically extracts tags from partial results

# Query memories - date-filtered
recent = recall_since("2025-12-01T00:00:00Z", n=50)  # after timestamp
range_mems = recall_between("2025-12-01T00:00:00Z", "2025-12-26T00:00:00Z")

# Soft delete
forget(memory_id)

# Version a memory (creates new, links to old)
new_id = supersede(old_id, "Updated preference", "decision")

# Salience adjustment for memory consolidation
strengthen("memory-id", factor=1.5)  # Boost salience (default 1.5x)
weaken("memory-id", factor=0.5)      # Reduce salience (default 0.5x)

# Config operations with constraints
config_set("identity", "I am Muninn...", "profile")
config_set("bio", "Short bio", "profile", char_limit=500)  # max length
config_set("rule", "Important rule", "ops", read_only=True)  # immutable
value = config_get("identity")
all_profile = profile()  # shorthand for config_list("profile")

# Journal (session summaries)
journal(topics=["coding"], my_intent="helped with refactor")
recent = journal_recent(5)

# Therapy session helpers
cutoff, unprocessed = therapy_scope()  # get memories since last therapy session
session_count = therapy_session_count()  # count therapy sessions

# Boot - load context and populate cache
print(boot())

# Analysis helpers
mems = recall(n=50)
by_type = group_by_type(mems)  # {"decision": [...], "world": [...]}
by_tag = group_by_tag(mems)    # {"ui": [...], "bug": [...]}

# Handoff workflow (cross-environment coordination)
# Note: handoff_pending() queries for memories tagged ["handoff", "pending"]
# However, not all pending work is tagged this way - always check broader queries too
pending = handoff_pending()  # get formal pending handoffs (both tags required)
all_handoffs = recall(tags=["handoff"], n=50)  # broader search for all handoff work
handoff_complete(handoff_id, "COMPLETED: ...", version="0.5.0")  # mark done

# Export/Import
state = muninn_export()  # all config + memories as JSON
stats = muninn_import(state, merge=True)  # merge into existing
stats = muninn_import(state, merge=False)  # replace all (destructive!)

Memory Types

HTTP API Format

All database ops use Turso's HTTP pipeline API:

POST /v2/pipeline
Headers: 
  Authorization: Bearer {TURSO_TOKEN}
  Content-Type: application/json

Body:
{
  "requests": [{
    "type": "execute",
    "stmt": {
      "sql": "SELECT * FROM memories WHERE type = ?",
      "args": [{"type": "text", "value": "decision"}]
    }
  }]
}

Testing

Run the skill locally:

import sys
sys.path.insert(0, '.')  # if in skill directory

from remembering import remember, recall

# Test write
id = remember("Test memory", "experience")
print(f"Created: {id}")

# Test read
results = recall("Test")
print(f"Found: {len(results)} memories")

File Structure

remembering/
├── __init__.py      # Main API implementation (33 exports)
├── bootstrap.py     # Schema creation/migration (4 exports)
├── SKILL.md         # Documentation for Claude.ai
├── CLAUDE.md        # This file (for Claude Code)
└── _MAP.md          # Code map (generated by mapping-codebases skill)

Quick Navigation: See _MAP.md for a complete list of all exported functions from __init__.py and bootstrap.py. The map is generated by the mapping-codebases skill and provides a structural overview without needing to read the full source.

Development Notes

Version Bumping: See critical requirement at top of this file.

Other development guidelines:

• Keep dependencies minimal (just requests)
• All timestamps are UTC ISO format
• Tags stored as JSON arrays
• Soft delete via deleted_at column
• session_id currently placeholder ("session")
• Always test changes before creating a PR

Lessons for Claude Code Agents

ALWAYS Explore Before Executing

When working with this skill, follow this sequence:

1. Check directory structure first:

   ls -la /path/to/remembering/
   

2. Identify the module location:

   • In repo root: /home/user/claude-skills/remembering/
   • Skills symlink: .claude/skills/remembering -> ../../remembering
   • The actual module is in repo root, NOT in a scripts/ subdirectory

3. Read the code before running:

   # Use Read tool to examine __init__.py first
   # Then run code with proper import path
   

4. Import correctly:

   import sys
   sys.path.insert(0, '/home/user/claude-skills')  # Repo root
   from remembering import recall, remember
   

Common Mistakes to Avoid

❌ DON'T assume there's a scripts/ directory ❌ DON'T try to import before checking file structure ❌ DON'T ignore symlinks - they tell you where code lives ❌ DON'T guess import paths

✅ DO use ls and Read tool first ✅ DO follow symlinks to find actual code ✅ DO verify imports work in a simple test first ✅ DO use absolute paths for sys.path

Debugging Import Issues

If imports fail:

# 1. Find the actual module
find /home/user/claude-skills -name "remembering" -type d

# 2. Check what's in it
ls -la /home/user/claude-skills/remembering/

# 3. Verify __init__.py exists
test -f /home/user/claude-skills/remembering/__init__.py && echo "Found" || echo "Missing"

# 4. Test import
python3 -c "import sys; sys.path.insert(0, '/home/user/claude-skills'); import remembering; print('Success')"

What's New in v3.6.0

Priority-Based Ops Ordering (#250): Ops entries within each topic category are now sorted by priority:

• Higher priority entries appear first within their category
• Use config_set_priority('key', 10) to set priority (default is 0)
• Equal-priority entries sorted alphabetically by key
• No entry recreation needed—just call config_set_priority()

Dynamic OPS_TOPICS (#251): Topic categories are now loaded from config:

• boot() reads topics from config_get('ops-topics') if available
• Falls back to built-in defaults if config is missing or invalid
• Reorganize categories without code changes via config_set('ops-topics', json.dumps({...}), 'ops')

from remembering import config_set_priority

# Set priority for critical entries
config_set_priority('storage-rules', 10)  # Critical - appears first
config_set_priority('boot-behavior', 5)   # Elevated priority

What's New in v3.5.0

GitHub Access Detection: Boot now automatically detects and reports GitHub access methods:

• Checks for gh CLI availability and authentication status
• Detects GITHUB_TOKEN / GH_TOKEN environment variables
• Reports recommended method in boot output
• Eliminates trial-and-error GitHub access patterns

Capabilities Section: Boot output now includes a # CAPABILITIES section with:

• GitHub access status and recommended method
• Installed utilities with import syntax
• Clear reporting of what's available

Utility Code Injection: Memories tagged utility-code are now:

• Automatically extracted to /home/claude/muninn_utils/
• Added to Python path for direct import
• Listed in boot output with import syntax

from remembering import detect_github_access

# Check GitHub access independently
github = detect_github_access()
if github['available']:
    print(f"Use {github['recommended']} for GitHub operations")

What's New in v3.2.0

Session Scoping: Filter memories by conversation or work session using session_id parameter.

Security Hardening: All SQL queries now use parameterized statements (SQL injection protection).

Automatic Flush: Background writes automatically flush on process exit (atexit hook prevents data loss).

Observability: New helpers for monitoring retrieval performance and query patterns:

• recall_stats() - cache hit rate, avg query time, performance metrics
• top_queries() - most common search patterns

Retention Management: New helpers for analyzing and pruning memories:

• memory_histogram() - distribution by type, priority, age
• prune_by_age() - delete old memories with priority filters
• prune_by_priority() - delete low-priority memories

What's New in v3.7.0

Parameter & Field Aliases (#262): Common field name mistakes are now transparently resolved instead of raising errors:

• m.content / m['content'] resolves to m.summary
• m.conf resolves to m.confidence
• recall(limit=20) works as alias for recall(n=20)

Configurable Query Expansion (#238): The query expansion threshold is now configurable:

• recall("term", expansion_threshold=5) - expand if fewer than 5 results
• recall("term", expansion_threshold=0) - disable expansion entirely
• Default remains 3 for backward compatibility

Standardized Return Format (#264): All results now include computed fields regardless of source:

• summary_preview (first 100 chars) always present
• bm25_score, composite_rank, composite_score added to VALID_FIELDS
• Results from Turso and cache are normalized to the same field set

What's New in v3.8.0

Auto-Credential Detection (#263): Turso credentials are now auto-detected from well-known env file paths:

• Scans /mnt/project/turso.env, /mnt/project/muninn.env, ~/.muninn/.env
• No manual set -a; . turso.env; set +a needed
• Built-in env file parser eliminates dependency on configuring skill

Session Cache Support (#237): Session-filtered queries now use the local cache:

• recall(session_id="my-session") uses cache (5ms) instead of Turso (200ms)
• session_id stored in memory_index cache table
• Automatic migration adds column on first boot

Ops Entry Hygiene (#265): Default ops topic mapping updated:

• Removed stale muninn-env-loading (superseded by #263 auto-detection)
• Consolidated recall-fields and recall-discipline into Memory Operations topic

Unified GitHub API (#240): New github_api() function:

• from remembering import github_api
• Automatically selects gh CLI or GITHUB_TOKEN/GH_TOKEN
• Supports GET, POST, PUT, PATCH, DELETE methods

Repo Defaults Fallback (#239): Boot now falls back to version-controlled defaults:

• defaults/profile.json and defaults/ops.json provide minimal config
• Used when both Turso and local cache are unavailable (fresh install + network outage)

Known Limitations

• None currently tracked