About Heddle
Heddle is an MCP server in the Developer Tools category: local agent control plane for Claude Code, Codex, MCP tools, and repository workflows.
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Install
uvx heddle-mcppip install heddle-mcpThis server has no ConduID identity, so agent calls to it are not receipted. Pin the version you install and review the source before granting it credentials.
Tools (5)
get_contractthe ~300-token context packet: contract + hash + one-line dep signatures + caller list
Parameters not published.
get_dependentsblast-radius query, direct or transitive, names + hashes; inferred (unreviewed) contracts flagged
Parameters not published.
put_contractvalidate, write `contracts/<name>.yaml`, return new hash, a semantic diff of what changed, and every invalidated dependent
Parameters not published.
statusdirty contracts, stale verifications, cache hit-rate, resolved verify interpreter, cumulative token counters
Parameters not published.
verifyper-unit `cached-pass` / `pass` / `fail` plus a top-level `ok` gate bit; `radius=true` widens each name to its full blast radius; runs tests only on cache misses; failures come back as a ≤40-token assertion summary, never a traceback; inferred contracts in the closure flagged (refused under strict provenance mode)
Parameters not published.
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