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How to catch drift in agent behaviour and ask about it over MCP with ZizkaDB

Use ZizkaDB's baseline to flag when an agent starts behaving differently from its history, and query the record from Cursor or Claude through its MCP server.

Short answer: Log sessions over time with the ZizkaDB SDK so there is history to compare; then call db.baseline(agent) to set drift detection against past sessions; after a model or prompt change, check the drift result before and after. All steps.

Who it is forA team that changes models or prompts and needs to know when an agent quietly starts acting differently.

The problemAfter a model or prompt update, behaviour shifts in small ways that nobody notices until users complain.

The outcomeDrift alerts against past sessions, and the ability to ask your coding assistant why an agent did something, answered from the audit record.

What you need first

  • Docker
  • Python or TypeScript SDK for integration

Steps

  1. Log sessions over time with the ZizkaDB SDK so there is history to compare
  2. Call db.baseline(agent) to set drift detection against past sessions
  3. After a model or prompt change, check the drift result before and after
  4. Add the MCP server to Cursor or Claude: command uvx with args zizkadb-mcp and ZIZKADB_HOST set to http://localhost:8000
  5. Ask in your assistant, for example why did support-bot call lookup_order?
  6. Replay sessions where drift shows up to confirm the change

Prompt for your agent

Connect the ZizkaDB MCP server (uvx zizkadb-mcp, ZIZKADB_HOST=http://localhost:8000). Compare <agent>'s behaviour before and after <date of model change> using its baseline, and list the sessions that drifted most with one sentence each on what changed.

Caveat. The README positions it as support for EU AI Act Article 12 record-keeping, not a compliance guarantee.

Use this in your AI agent

Ask your agent

Using the Deduped MCP, get the setup steps for ZIZKA-AI-SL/ZizkaDB and "Catch drift in agent behaviour and ask about it over MCP"

Add Deduped to Claude Code once

claude mcp add --transport http deduped https://dedupedai.com/mcp

Cursor, ChatGPT, others

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