DevTime v0.1.2 - read-only MCP server for coding agents

DevTime v0.1.2 - read-only MCP server for coding agents

DevTime memory is now available to coding agents. dtc mcp start runs a local,
read-only MCP server over stdio, so agents like Claude Code can query
evidence-backed repository memory instead of guessing. No changes to concept
detection, risk review, or scanner behavior.

Highlights

• New: dtc mcp start: a real MCP stdio server exposing three read-only tools:
  • list_concepts - detected concepts with confidence labels
  • explain_concept - claims, evidence file paths, uncertainty, Understanding Score
  • get_context_pack - governed context with do-not-change-without-review paths,
    tests to run, and agent guidance
• Optional dependency: MCP support is an extra, so the core install stays lean:
  pipx install "devtime-ei[mcp]"
• One-line agent setup for Claude Code:
  claude mcp add devtime -- dtc mcp start
• dtc mcp preview now shows which tools are implemented vs planned.

Trust model (unchanged, now enforced by a real server)

• Read-only: no write tools are exposed.
• Local stdio only: no network listener.
• No source code is returned: claims, evidence file paths, and uncertainty only.
• Weak evidence is reported as uncertainty, not confidence.
• If the repository is not scanned, tools return a clear not_initialized error.

Try it

pipx install "devtime-ei[mcp]"
cd your-repo
dtc init
dtc scan
claude mcp add devtime -- dtc mcp start

Then ask your agent things like "what concepts does this repo support?" or "get the
context pack for Billing Webhooks before I change it."

Names

• The PyPI distribution is devtime-ei.
• The Python import package remains devtime.
• The CLI command remains dtc.

Notes

• 104 passing tests (7 new for the MCP transport, including registration, calls
  against a scanned demo repo, and the not-initialized guard).
• End-to-end verified with the official MCP Python client over stdio.
• No cloud, no telemetry, no AI, no code execution added.