Persistent Memory

Three-layer persistent memory system (Markdown + ChromaDB vectors + NetworkX knowledge graph) for long-term agent recall across sessions. One-command setup with automatic OpenClaw integration. Use when the agent needs to remember decisions, facts, context, or institutional knowledge between sessions.

Adds persistent three-layer memory to any OpenClaw workspace. The agent gains semantic recall across sessions — decisions, facts, lessons, and institutional knowledge survive restarts.

Architecture

Layer	Technology	Purpose
L1: Markdown	MEMORY.md + daily logs + reference/	Human-readable curated knowledge
L2: Vector	ChromaDB + all-MiniLM-L6-v2	Semantic search across all memories
L3: Graph	NetworkX	Relationship traversal between concepts

All three layers sync together. The indexer updates L2 and L3 from L1 automatically.

⚠️ Critical Integration: OpenClaw Memory Configuration

Problem: OpenClaw has its own built-in memory search system, but by default it only indexes MEMORY.md and memory/*.md files. Critical workspace files like SOUL.md (agent directives), AGENTS.md (behavior rules), and PROJECTS.md (active work) are ignored.

Impact: Agents can violate explicit directives because they're not found in memory searches. This causes operational failures where agents ignore their own rules.

Solution: The configure_openclaw.py script adds a memorySearch configuration block to OpenClaw that indexes all critical workspace files. This makes directive compliance automatic rather than optional.

Setup

One command from workspace root:

bash

bash skills/persistent-memory/scripts/unified_setup.sh

This automatically:

• ✅ Creates 3-layer memory system (Markdown + Vector + Graph)
• ✅ Installs all Python dependencies (ChromaDB, NetworkX, sentence-transformers)
• ✅ Configures OpenClaw memorySearch integration (directive compliance)
• ✅ Indexes existing MEMORY.md if present
• ✅ Sets up daily maintenance automation

No manual configuration needed. The script handles everything including OpenClaw integration that prevents agents from ignoring workspace directives (SOUL.md, AGENTS.md, etc.).

Daily Usage

Writing Memories

• MEMORY.md — Curated long-term knowledge (decisions, architecture, lessons learned). Update after significant events.
• memory/YYYY-MM-DD.md — Daily logs. Raw notes of what happened each day.
• reference/*.md — Institutional facts (people, repos, infrastructure, business rules). The agent's encyclopedia.

Indexing (after editing any memory file)

bash

vector_memory/venv/bin/python vector_memory/indexer.py

The indexer parses MEMORY.md, reference/.md, and memory/.md into vector embeddings and rebuilds the knowledge graph. Run after every edit to keep layers in sync.

Searching

bash

vector_memory/venv/bin/python vector_memory/search.py "your query"

Returns top-3 semantically similar chunks with source file and section.

Sync Status Check

bash

vector_memory/venv/bin/python vector_memory/auto_retrieve.py --status

Reports sync health: MEMORY.md hash vs indexed state, chunk count, graph size. Use in heartbeats to detect drift.

Agent Behavior Rules

Add these to AGENTS.md or SOUL.md:

Pre-Response (mandatory)

Before answering questions about prior work, decisions, dates, people, or preferences — search memory first. Use memory_search or run auto_retrieve.py with the query. Never say "I don't remember" without checking.

CRITICAL: OpenClaw's built-in memory search should now automatically find directive files (SOUL.md, AGENTS.md) if configure_openclaw.py was run. If memory searches are not finding agent rules or workspace directives, the OpenClaw integration is missing or broken.

Pre-Action (mandatory)

Before executing any action that references an external identifier (URL, handle, email, repo name, address) — query reference/ files for the exact value. If not found, query vector memory. If still not found, ask the user. Never fabricate identifiers.

Post-Edit (mandatory)

After editing MEMORY.md or any file in reference/ or memory/ — re-index:

bash

vector_memory/venv/bin/python vector_memory/indexer.py

Heartbeat Integration

Add to HEARTBEAT.md:

text

## Memory Sync Check
Run `vector_memory/venv/bin/python vector_memory/auto_retrieve.py --status` and if status is OUT_OF_SYNC, re-index with `vector_memory/venv/bin/python vector_memory/indexer.py`.

Reference Directory (Optional but Recommended)

Create reference/ in the workspace root as the agent's institutional knowledge base:

text

reference/
├── people.md          — Contacts, roles, communication details
├── repos.md           — GitHub repositories, URLs, status
├── infrastructure.md  — Hosts, IPs, ports, services
├── business.md        — Company info, strategies, rules
└── properties.md      — Domain-specific entities (deals, products, etc.)

These files are vector-indexed alongside MEMORY.md. The agent queries them before any action involving external identifiers. Facts accumulate over time — the agent that never forgets.

File Structure After Setup

text

workspace/
├── MEMORY.md              — Curated long-term memory (L1)
├── memory/
│   ├── 2026-02-17.md      — Daily log
│   └── heartbeat-state.json — Sync tracking
├── reference/             — Institutional knowledge (optional)
│   ├── people.md
│   └── ...
└── vector_memory/
    ├── indexer.py          — Index all markdown into vectors + graph
    ├── search.py           — Semantic search CLI
    ├── graph.py            — NetworkX knowledge graph
    ├── auto_retrieve.py    — Status checker + auto-retrieval
    ├── chroma_db/          — Vector database (gitignored)
    ├── memory_graph.json   — Knowledge graph (auto-generated)
    └── venv/               — Python venv (gitignored)

Troubleshooting

• "No module named chromadb" — Run setup.sh again or activate the venv: source vector_memory/venv/bin/activate
• OUT_OF_SYNC status — Run the indexer: vector_memory/venv/bin/python vector_memory/indexer.py
• Empty search results — Check that MEMORY.md has content and the indexer has been run at least once
• SIGSEGV on indexing — Usually caused by incompatible ML libs. The setup script pins known-good versions.
• Agent ignoring SOUL.md/AGENTS.md directives — OpenClaw integration missing. Run python skills/persistent-memory/scripts/configure_openclaw.py to fix.
• Memory searches not finding workspace files — Check OpenClaw configuration: openclaw config get | grep memorySearch
• "Configuration verification failed" — Restart OpenClaw manually: openclaw gateway restart