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Claude
23ab522445
- Standalone-proposal semantics: workspace resets to pristine before every apply, so probe patches can't accumulate into a tested tree the ledger's patch field doesn't describe. - Friendly errors: explicit trailing-newline check, and git apply's stderr relayed on refusal instead of a generic message. - Tool docs + task prompt updated to match. - phase2-comrak-004 audited: honest rejected-bench (median 1.0124, CI [1.0011, 1.0267] — real but under the 2% bar), Mutex pre-flagged for human review, cumulative-probe state disclosed in the hypothesis. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01EcKPWQ3MQD4NdEHwar96u2
79 lines
2.9 KiB
Python
79 lines
2.9 KiB
Python
"""Standalone MCP stdio server exposing the six harness tools (SPEC §3.5).
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Spawned as a subprocess by the agent loop; speaks MCP over stdio. Wraps
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the harnessd IPC client — the trust-layer allowlist and gates remain the
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hard boundary. Run standalone for debugging:
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HOTPATH_REPO_ROOT=/path/to/repo python -m hotpath_agent.mcp_server
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"""
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from __future__ import annotations
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import os
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from mcp.server.fastmcp import FastMCP
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from . import tools as harness
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REPO_ROOT = os.environ.get("HOTPATH_REPO_ROOT", ".")
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harness.connect(REPO_ROOT)
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mcp = FastMCP("harness")
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@mcp.tool()
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def read_profile(target: str) -> str:
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"""Latest profile for a target: ranked hotspots with % of instructions."""
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return str(harness.read_profile(target))
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@mcp.tool()
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def read_ledger(target: str) -> str:
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"""Prior attempts against a target. Never re-attempt a playbook class listed here."""
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return str(harness.read_ledger(target))
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@mcp.tool()
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def read_playbook(class_number: int) -> str:
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"""Optimization playbook class 1-7: preconditions, procedure, verification, failure modes."""
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return harness.read_playbook(class_number)
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@mcp.tool()
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def read_target_source(target: str, path: str, offset: int = 0, limit: int = 400) -> str:
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"""Read one file from the target workspace (path relative to the workspace root),
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as a line window: `offset` (0-based first line) and `limit` (max lines). Large
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files (100KB+) MUST be read in windows — the response is truncated otherwise.
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Returns numbered lines plus total_lines/returned_lines/truncated metadata."""
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return str(harness.read_target_source(target, path, offset, limit))
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@mcp.tool()
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def propose_patch(target: str, diff: str, hypothesis: str) -> str:
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"""Submit a unified git diff (a/ b/ prefixes, paths relative to the target
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workspace, MUST end with a trailing newline) plus the hypothesis it tests.
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Each proposal is STANDALONE: the workspace is reset to pristine before the
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diff is applied, so always submit the complete patch — never an increment
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on top of an earlier proposal. The harness applies it only after a
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path-allowlist check. Returns a patch_id, or an error string if refused."""
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return harness.propose_patch(target, diff, hypothesis)
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@mcp.tool()
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def run_verdict(patch_id: str, run_id: str, playbook_class: int, hotspot: str) -> str:
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"""Launch the gate+bench pipeline on a proposed patch (runs detached, several
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minutes) and return immediately. Poll read_verdict with the same run_id for the
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result; the ledger row is written when the pipeline finishes."""
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return str(harness.run_verdict(patch_id, run_id, playbook_class, hotspot))
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@mcp.tool()
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def read_verdict(run_id: str) -> str:
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"""Poll for a completed verdict by run_id. Returns the verdict and speedup CI once
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the ledger row is written, or a 'running' status while the pipeline is still going."""
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return str(harness.read_verdict(run_id))
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if __name__ == "__main__":
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mcp.run()
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