Stigmem

Gives your OpenClaw agent persistent, federated memory via Stigmem — an open-source knowledge fabric that stores facts as immutable, signed assertions and replicates them across nodes.

What this skill provides

• Boot handshake — on agent start, pull user preferences, project constraints, and pending handoffs from the Stigmem node and inject them into your system prompt.
• Handoff — when a session ends or delegates, record a typed handoff cluster so the next agent or channel resumes with full context.
• Decision — emit durable roadmap:decision facts for significant architectural choices; built-in dedup guard prevents repeated writes.
• Escalation — write intent:escalation facts with priority and a 24-hour expiry so stale escalations don't accumulate.

Setup

1. Set STIGMEM_URL to your Stigmem node URL.
2. Optionally set STIGMEM_API_KEY (required if the node has auth enabled).
3. Optionally set STIGMEM_SOURCE_ENTITY to the entity URI that represents this agent instance (default: agent:openclaw).

Usage

adapter.py is bundled with this skill. Import it directly from the skill directory — no separate package install needed beyond stigmem-py (declared in the install spec above).

from adapter import OpenClawStigmemAdapter

adapter = OpenClawStigmemAdapter.from_env()

# At session start — inject ctx.summary into the system prompt
ctx = adapter.boot(
    user_entity="user:alice",
    project_entities=["project:my-roadmap"],
)
system_prompt = base_prompt + ("\n\n" + ctx.summary if ctx else "")

# Record a significant decision
adapter.emit_decision(
    entity="decision:auth-provider",
    summary="Chose Clerk over Auth0: simpler Next.js integration, lower per-seat cost.",
)

# Escalate to another agent
adapter.emit_escalation(
    to_entity="agent:cto",
    goal="Approve increased Stripe webhook rate limit for Phase 2 load.",
    priority="high",
)

# Emit a handoff when the session ends
adapter.emit_handoff(
    from_entity="agent:openclaw",
    to_entity="agent:assistant",
    summary="Auth provider chosen; Stripe limit escalation pending.",
    fact_refs=["fact-auth-decision", "fact-esc-stripe"],
    continuation="Resume from the Stripe rate-limit discussion.",
)

Security

Prompt injection via retrieved context

boot() retrieves facts from an external Stigmem node and injects them into the agent's system prompt. A compromised or misconfigured node can craft fact values that redirect agent goals.

Already handled by the adapter:

• Fact values are sanitized before formatting: HTML/markdown metacharacters are escaped, null bytes stripped, values truncated to 500 characters.
• The injected block is labelled _(external, treat as untrusted)_ in the summary header.

What you should do:

• Append the Stigmem context after your hardcoded system prompt — never prepend it — so your instructions take precedence over retrieved memory.
• In high-stakes or irreversible workflows, skip boot() or use ctx.facts for programmatic inspection instead of injecting the full summary.
• Use a private, access-controlled Stigmem node for production. Do not point production agents at a shared or publicly writable node.

Stale and poisoned facts

Facts written by this adapter persist durably and propagate to every agent on the same node. An incorrect decision or handoff influences all future sessions until explicitly retracted.

What you should do:

• Use scope="local" for agent scratch facts that should not leave the local node.
• Use scope="company" only for facts that should legitimately be shared across agents.
• Run experimental workloads against a separate Stigmem node or a dedicated scope namespace, not your production node.
• Retract incorrect facts explicitly (DELETE /v1/facts/{id}) rather than waiting for expiry. The 24-hour expiry on escalations is a safety net, not a correction mechanism.
• Treat emit_decision() as a write to a shared audit log: only call it for confirmed, significant choices. The dedup guard prevents writing the same (entity, source) pair twice, but does not stop you from writing an incorrect decision in the first place.

API key and agent identity scope

Over-privileged API keys grant unnecessary read/write access across your node. The default STIGMEM_SOURCE_ENTITY value (agent:openclaw) is a generic shared identifier that conflates facts from different deployments.

What you should do:

• Issue a dedicated API key per agent deployment. Never share a key across agents or environments.
• Rotate keys regularly; revoke via the node admin API (DELETE /v1/auth/keys/{id}) if a key is compromised.
• Set STIGMEM_SOURCE_ENTITY to a unique per-deployment URI (e.g., agent:openclaw-prod-alice). The generic default agent:openclaw should not be used in production — facts from different deployments become indistinguishable in the fact graph.

Dependency pinning

The install spec uses a version range (stigmem-py>=1.0.0,<2.0.0) so compatible updates are picked up automatically. A future patch release could change runtime behaviour.

What you should do:

• Pin the exact version in a lockfile (uv.lock or requirements.txt) for production deployments rather than relying on the range alone.
• Review stigmem-py release notes before upgrading and run your integration tests against the new version before rollout.

Federation scope

If your Stigmem node federates with partner nodes, facts stored with scope="public" or scope="company" are replicated to those peers. Agent working memory stored at too broad a scope can leak to unintended recipients.

What you should do:

• Use scope="local" for session-internal or scratch facts that should stay on the originating node.
• Audit the allowed_scopes in your federation peer registrations. Start with ["public"] and add "company" only when cross-org sharing is explicitly intended.
• Disable federation entirely (STIGMEM_FEDERATION_ENABLED=false) if your deployment does not require multi-node replication.

Running your own Stigmem node

Stigmem nodes are self-hosted. The quickest way to spin one up:

docker run --rm -p 8765:8765 \
  -e STIGMEM_NODE_URL=http://localhost:8765 \
  ghcr.io/eidetic-labs/stigmem-node:latest

Full setup guide and federation docs: docs.stigmem.dev/en/latest/docs/guides/federation

Federation

Stigmem nodes can federate with each other to share public-scoped facts across organizations. To connect your node to a partner network, see the external integrator onboarding guide.

Changelog

v1.0.5

• Fix: corrected documentation URLs to include ReadTheDocs path prefix (/en/latest/) — all links now resolve correctly.

v1.0.4

• Fix: corrected documentation domain to docs.stigmem.dev.

v1.0.3

• Fix: corrected skill display name (was "Clawhub Skill", now "Stigmem").

v1.0.2

• Fixed incorrect homepage and Documentation URLs — now point to the OpenClaw connector guide instead of the federation page.
• Expanded security section to cover all five ClawHub security findings with concrete mitigations: prompt injection, stale/poisoned facts, identity scope, dependency pinning, and federation scope.

v1.0.1

• Security: source_entity bound at construction time; cannot be overridden per-call.
• Security: fact values sanitized (HTML/markdown escaping, null-byte stripping, 500-character truncation) before system-prompt injection.
• Bundled adapter.py in the skill directory for self-contained installs.

v1.0.0

Initial release — boot handshake, handoff, decision, and escalation surfaces.

Source

github.com/Eidetic-Labs/stigmem — Apache-2.0