chore: improve agent readiness — AGENTS.md, dependabot, CODEOWNERS, labels

- Add AGENTS.md with build commands, project structure, conventions
- Add .github/dependabot.yml for automated pip + actions updates
- Add .github/CODEOWNERS for review routing
- Expand .gitignore (.env, .DS_Store, IDE configs, coverage, venvs)
- Add C901 complexity rule to ruff (max-complexity=25, benchmarks excluded)
- Add --durations=10 to pytest CI for test performance tracking
- Add docs/schema.sql for knowledge graph schema documentation
- Created P0-P3 priority + area/* + security/performance/docs labels

.github/CODEOWNERS

@@ -0,0 +1,13 @@
+# Default owners for everything
+* @milla-jovovich @bensig @igorls
+
+# Core library
+mempalace/ @milla-jovovich @bensig
+
+# CI and workflows
+.github/ @bensig
+
+# Plugins and integrations
+.claude-plugin/ @bensig
+.codex-plugin/ @bensig
+integrations/ @bensig

.github/dependabot.yml

@@ -0,0 +1,12 @@
+version: 2
+updates:
+  - package-ecosystem: "pip"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    open-pull-requests-limit: 5
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    open-pull-requests-limit: 3

.github/workflows/ci.yml

@@ -18,7 +18,7 @@ jobs:
         with:
           python-version: ${{ matrix.python-version }}
       - run: pip install -e ".[dev]"
-      - run: python -m pytest tests/ -v --ignore=tests/benchmarks --cov=mempalace --cov-report=term-missing --cov-fail-under=80
+      - run: python -m pytest tests/ -v --ignore=tests/benchmarks --cov=mempalace --cov-report=term-missing --cov-fail-under=80 --durations=10
 
   test-windows:
     runs-on: windows-latest
@@ -28,7 +28,7 @@ jobs:
         with:
           python-version: "3.9"
       - run: pip install -e ".[dev]"
-      - run: python -m pytest tests/ -v --ignore=tests/benchmarks --cov=mempalace --cov-report=term-missing --cov-fail-under=80
+      - run: python -m pytest tests/ -v --ignore=tests/benchmarks --cov=mempalace --cov-report=term-missing --cov-fail-under=80 --durations=10
 
   test-macos:
     runs-on: macos-latest
@@ -38,7 +38,7 @@ jobs:
         with:
           python-version: "3.9"
       - run: pip install -e ".[dev]"
-      - run: python -m pytest tests/ -v --ignore=tests/benchmarks --cov=mempalace --cov-report=term-missing --cov-fail-under=80
+      - run: python -m pytest tests/ -v --ignore=tests/benchmarks --cov=mempalace --cov-report=term-missing --cov-fail-under=80 --durations=10
   lint:
     runs-on: ubuntu-latest
     steps:

.gitignore

@@ -6,3 +6,30 @@ __pycache__/
 .pytest_cache/
 mempal.yaml
 .a5c/
+
+# Environment
+.env
+.env.*
+
+# OS
+.DS_Store
+Thumbs.db
+
+# IDEs
+.idea/
+.vscode/
+*.swp
+*.swo
+*~
+
+# Coverage
+htmlcov/
+.coverage
+coverage.xml
+
+# Virtual environments
+.venv/
+venv/
+
+# ChromaDB local data
+*.sqlite3-journal

AGENTS.md

@@ -0,0 +1,78 @@
+# AGENTS.md
+
+> How to build, test, and contribute to MemPalace.
+
+## Setup
+
+```bash
+pip install -e ".[dev]"
+```
+
+## Commands
+
+```bash
+# Run tests
+python -m pytest tests/ -v --ignore=tests/benchmarks
+
+# Run tests with coverage
+python -m pytest tests/ -v --ignore=tests/benchmarks --cov=mempalace --cov-report=term-missing
+
+# Lint
+ruff check .
+
+# Format
+ruff format .
+
+# Format check (CI mode)
+ruff format --check .
+```
+
+## Project structure
+
+```
+mempalace/
+├── mcp_server.py        # MCP server — all read/write tools
+├── miner.py             # Project file miner
+├── convo_miner.py       # Conversation transcript miner
+├── searcher.py          # Semantic search
+├── knowledge_graph.py   # Temporal entity-relationship graph (SQLite)
+├── palace.py            # Shared palace operations (ChromaDB access)
+├── config.py            # Configuration + input validation
+├── normalize.py         # Transcript format detection + normalization
+├── cli.py               # CLI dispatcher
+├── dialect.py           # AAAK compression dialect
+├── palace_graph.py      # Room traversal + cross-wing tunnels
+├── hooks_cli.py         # Hook system for auto-save
+└── version.py           # Single source of truth for version
+```
+
+## Conventions
+
+- **Python style**: snake_case for functions/variables, PascalCase for classes
+- **Linter**: ruff with E/F/W rules
+- **Formatter**: ruff format, double quotes
+- **Commits**: conventional commits (`fix:`, `feat:`, `test:`, `docs:`, `ci:`)
+- **Tests**: `tests/test_*.py`, fixtures in `tests/conftest.py`
+- **Coverage**: 85% threshold (80% on Windows due to ChromaDB file lock cleanup)
+
+## Architecture
+
+```
+User → CLI / MCP Server → ChromaDB (vector store) + SQLite (knowledge graph)
+
+Palace structure:
+  WING (person/project)
+    └── ROOM (topic)
+          └── DRAWER (verbatim text chunk)
+
+Knowledge Graph:
+  ENTITY → PREDICATE → ENTITY (with valid_from / valid_to dates)
+```
+
+## Key files for common tasks
+
+- **Adding an MCP tool**: `mempalace/mcp_server.py` — add handler function + TOOLS dict entry
+- **Changing search**: `mempalace/searcher.py`
+- **Modifying mining**: `mempalace/miner.py` (project files) or `mempalace/convo_miner.py` (transcripts)
+- **Input validation**: `mempalace/config.py` — `sanitize_name()` / `sanitize_content()`
+- **Tests**: mirror source structure in `tests/test_<module>.py`

docs/schema.sql

@@ -0,0 +1,36 @@
+-- MemPalace Knowledge Graph Schema
+-- SQLite database at ~/.mempalace/knowledge_graph.db
+
+CREATE TABLE IF NOT EXISTS entities (
+    id TEXT PRIMARY KEY,
+    name TEXT NOT NULL,
+    type TEXT DEFAULT 'unknown',
+    properties TEXT DEFAULT '{}'
+);
+
+CREATE TABLE IF NOT EXISTS triples (
+    id TEXT PRIMARY KEY,
+    subject TEXT NOT NULL,
+    predicate TEXT NOT NULL,
+    object TEXT NOT NULL,
+    valid_from TEXT,
+    valid_to TEXT,
+    confidence REAL DEFAULT 1.0,
+    source_closet TEXT,
+    source_file TEXT
+);
+
+CREATE TABLE IF NOT EXISTS attributes (
+    entity_id TEXT NOT NULL,
+    key TEXT NOT NULL,
+    value TEXT,
+    valid_from TEXT,
+    valid_to TEXT,
+    PRIMARY KEY (entity_id, key, valid_from)
+);
+
+-- Indexes
+CREATE INDEX IF NOT EXISTS idx_triples_subject ON triples(subject);
+CREATE INDEX IF NOT EXISTS idx_triples_object ON triples(object);
+CREATE INDEX IF NOT EXISTS idx_triples_predicate ON triples(predicate);
+CREATE INDEX IF NOT EXISTS idx_triples_valid ON triples(valid_from, valid_to);

pyproject.toml

@@ -54,11 +54,15 @@ packages = ["mempalace"]
 [tool.ruff]
 line-length = 100
 target-version = "py39"
+extend-exclude = ["benchmarks"]
 
 [tool.ruff.lint]
-select = ["E", "F", "W"]
+select = ["E", "F", "W", "C901"]
 ignore = ["E501"]
 
+[tool.ruff.lint.mccabe]
+max-complexity = 25
+
 [tool.ruff.format]
 quote-style = "double"