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How to keep workspace conventions across agent sessions with DSH Memento

Store project facts once so each new DeepSeek Harness session starts with them in the system prompt.

Short answer: Run dsh plugin --profile web add dsh-memento to install the plugin; then run dsh --profile web --dump-config | grep -A3 'id: memento' to confirm the memento row is present; run /memory add and store one convention, such as the test command, in the agent track workspace layer. All steps.

Who it is forA developer on DeepSeek Harness who keeps re-explaining the same test commands and repo conventions at the start of every session.

The problemEach new session starts with no memory of project conventions, so the same context has to be typed again.

The outcomeConventions saved in the agent track workspace layer appear in the frozen snapshot of every later session.

What you need first

  • Node ^22.19.0 or >=24.0.0
  • DeepSeek Harness with the dsh CLI installed
  • A dsh profile, such as the web profile used in the examples

Steps

  1. Run dsh plugin --profile web add dsh-memento to install the plugin.
  2. Run dsh --profile web --dump-config | grep -A3 'id: memento' to confirm the memento row is present.
  3. Run /memory add and store one convention, such as the test command, in the agent track workspace layer. (inferred, check the README)
  4. Start a new session and check that the stored convention is in the injected snapshot.

Prompt for your agent

In the dsh-memento repo, store the test command for <project> in the agent track workspace layer with /memory add, then run /memory list. Expected output: the new entry listed under agent and workspace. Verify that the memory_stats total increased by one.

Caveat. The repo has been FROZEN since 2026-10-05, so expect no new fixes and pin the version you install.

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Using the Deduped MCP, get the setup steps for PerryLink/dsh-memento and "Keep workspace conventions across agent sessions"

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