Skill: TraceMem Traces and Audit

Purpose

This skill explains the concept of the Decision Trace as an artifact. Understanding this helps you write better "evidence" into the system.

When to Use

• When you need to understand what TraceMem is actually recording.
• When generating reports or answering questions about past actions ("Why did you do that?").

When NOT to Use

• You generally do not "use" this skill to execute actions, but to inform how you execute them.

Core Rules

• The Trace is the Truth: If it's not in the trace, it didn't happen (legally/audit-wise).
• Append-Only: You cannot go back and fix history.
• Complete Picture: A trace includes your ID, the time, the policy version, the data schema version, and the exact outcomes.

Correct Usage Pattern

1. Design for Readability: When running a decision, imagine a human reading the trace 6 months later.

   • "Why did this agent delete this user?"
   • Look at the intent, look at the context you added, look at the policy result.
   • If the trace answers the question, you succeeded.

2. Linking: If you chain decisions (one decision triggers another workflow), reference the parent decision_id in the child's metadata or context.

Searching Past Decisions

Use decision_search to query your agent's previous decisions:

• Find precedent: Search by text, category, or tags before making a new decision
• Check supersession chains: Results include supersedes and superseded_by indicators -- follow the chain to find the current active decision
• Filter by status: Use status: "committed" to find only finalized decisions

Tool: decision_search
Parameters:
  - query: "authentication"  (free-text search)
  - category: "architecture"  (optional)
  - tags: ["jwt", "auth"]  (optional, all must match)
  - status: "committed"  (optional)
  - limit: 10  (optional, default 20, max 100)

This is particularly valuable for:

• Answering "Why did we decide X?" questions
• Avoiding duplicate or contradictory decisions
• Building on prior context when making related decisions

Common Mistakes

• Phantom Actions: Doing side effects (like calling an external API) without recording it in TraceMem or via a Data Product. This creates "dark matter" — actions that have no record.
• Incomplete Evidence: Reading data via a side-channel (not a Data Product) and then acting on it. The trace will show the action but not the data that justified it.
• Not searching before deciding: Always check decision_search for existing decisions on the same topic before recording a new one.

Safety Notes

• Exoneration: A good trace protects you (the agent). If a policy was wrong, the trace proves you followed the policy correctly. If data was bad, the trace proves you acted on the bad data you were given.