kcp-harness — KCP compliance proxy MCP Server
MCP compliance proxy between agent and tools: deterministic governance, fail-closed, audit trail.
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Status
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Connect
Published as kcp-harness on npm. Runs locally.
Known issues
10 problems reported by people outside the maintainer team. Issues filed by the project's own owners, members and collaborators are excluded — those are release checklists and internal refactors, not things that will go wrong for you. Showing 7.
Most discussed
Governance plane — org-scale governance across agent fleets
Problem statement (discussion first)
Everything in kcp-harness today is per-session, per-proxy: one agent, one stdio proxy, one budget ledger, one temporal watcher. The industry is moving to fleets — many agents, long-running, operating for one org under one policy. That needs a governance plane:
- Shared approval queue — one review surface for tickets from every agent (the file-based
ApprovalProviderfrom #28 is accidentally the first step: it's already cross-process and rest
Read the thread · 2026-07-21 · open · 2 comments
Pending governance decisions — support human-approval gates, not just synchronous approve/block
Problem
Same governance pilot as the companion kcp-agent issue (Cantara/kcp-agent#93 — cross-referencing there for the fuller context). Part of the org's policy model requires that certain task types — not knowledge access, but actions an agent proposes to take — need a specific named human's sign-off before they proceed, not just an automated allow/deny. Example from the pilot: an agent may suggest changes to a customer record freely, but changing its formal status requires a named "a
Read the thread · 2026-07-20 · closed · 2 comments
Add Pi as a kcp-harness integration target
TL;DR: kcp-harness supports several MCP-capable coding agents but not Pi. Add a native Pi integration generator so projects can receive the correct MCP configuration and operating guidance without hand-authoring glue.
Acceptance criteria
- Add
kcp-harness integrate pi. - Generate the appropriate project-local Pi MCP configuration.
- Generate concise agent operating guidance/skill content without duplicating governance logic.
- Support dry-run and idempotent regeneration.
- Add fixtur
Read the thread · 2026-07-14 · closed · outside contributor · 2 comments
Procedural conformance gate — "grounding for actions" (new ConformanceVerdict, into the #34 chain)
Problem
Grounding (ClaimVerdict) adjudicates what the agent asserted — each claim must trace to a loaded knowledge unit, content-hash matched; a hallucinated citation "proposes into a void." There is no analog that adjudicates what the agent did against the procedure it was authorized to follow.
An agent can claim "I followed the approved deployment procedure" and no deterministic layer checks whether its actual tool-call sequence stayed within that procedure's declared scope. Thi
Read the thread · 2026-07-22 · closed · 1 comment
Classify skill/procedure invocation as a governed call + emit procedural audit events
Problem
The proxy's five-stage pipeline — RECEIVE → CLASSIFY → GOVERN (13 gates) → EXECUTE → AUDIT — classifies whether an MCP tool call targets governed knowledge (e.g. Read("docs/api.md") where docs/ is governed → planner; Read("package.json") → pass-through), and always governs KCP tool calls. It does not recognize an agent loading a procedure — a SKILL.md, a slash-command, a workflow definition — as a governed event.
So the fifth audit question — *"what playbooks did
Read the thread · 2026-07-22 · closed · 1 comment
Most recent
Harden the Claude Code PreToolUse hook — 5 governance bypasses (red-team)
Follow-up to #23. That fix made the hook fire (it read process.env.TOOL_INPUT which is never set); this issue is about how much the now-firing hook actually covers. I red-teamed the merged hook by executing it the way Claude Code does (payload on stdin) with evasion payloads.
Governed paths in the test: ["docs/", "fragments/"]. Baselines correctly deny (docs/api.md, ./docs/api.md, /abs/…/docs/api.md, docs//api.md, src/../docs/api.md). These slip through:
| Payload | Res
Read the thread · 2026-07-20 · closed · 0 comments
Emit decision traces (kcp_trace gate cascade) for dashboard ingestion
Cross-repo companion to Cantara/kcp-dashboard#2 (agent thought-graph, decision layer). Design doc: docs/thought-graph-phase2.md in kcp-dashboard.
Context
kcp-harness already computes a DecisionTrace (the deterministic 13-gate cascade per unit) on demand via kcp_trace (src/kcp-bridge.ts → traceDecision). But the audit log strips it (src/audit.ts:241 — "Omit full trace from audit (it's large); the trace is available via kcp_trace"), so nothing persists the why behind a gov
Read the thread · 2026-07-14 · closed · 0 comments
See all 10 reports Pod holds for kcp-harness — KCP compliance proxy.
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Related servers
- kcp-agent — KCP navigation planner — Also by cantara.github.io
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