Show HN: cMCP, deny an AI agent's tool call and get a signed receipt
cMCP: Confidential MCP Runtime Enforce MCP tool policy inside a TEE, where the agent it governs cannot reach it Quick Start · Architecture · Configuration · CLI · Changelog Developer Preview - launched at the Confidential Computing Summit, June 23 2026. See STATUS.md for exactly what ships today versus what is on the roadmap. cMCP (Confidential MCP Runtime) is the secure, confidential way to run MCP: an open-source gateway that enforces MCP tool-call policy inside a hardware Trusted Execution Environment (TEE). Every tool call is intercepted, evaluated against a Cedar policy bundle, and enforced where the process it governs cannot reach it.
- ▪cMCP: Confidential MCP Runtime Enforce MCP tool policy inside a TEE, where the agent it governs cannot reach it Quick Start · Architecture · Configuration · CLI · Changelog Developer Preview - launched at the Confidential Computing Summit,
- ▪See STATUS.md for exactly what ships today versus what is on the roadmap. cMCP (Confidential MCP Runtime) is the secure, confidential way to run MCP: an open-source gateway that enforces MCP tool-call policy inside a hardware Trusted Execut
- ▪Every tool call is intercepted, evaluated against a Cedar policy bundle, and enforced where the process it governs cannot reach it.
Hacker News (AI / LLM) files mainly under ai. We currently carry 3,577 of its stories.
Story provenance
Source · retrieval · rights · ranking — open for full record
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Story provenance
Attribution is not the same as permission. This drawer separates discovery metadata, excerpts, WeSearch-generated summaries, reuse status, and whether the publisher receives the visit. Nothing here claims a legal grant the publisher has not made.
Record
| Original publisher | GitHub |
| Canonical URL | https://github.com/agentrust-io/cmcp |
| Publication time | Tue, 04 Aug 2026 18:06:08 +0000 |
| Retrieval time | 2026-08-04T18:15:44.306Z |
| Last seen | 2026-08-04T18:15:44.306Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | th-bc-ZvrCEN · 1 stories |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
cMCP: Confidential MCP Runtime Enforce MCP tool policy inside a TEE, where the agent it governs cannot reach it Quick Start · Architecture · Configuration · CLI · Changelog Developer Preview - launched at the Confidential Computing Summit, June 23 2026. May have breaking changes before v1.0. See STATUS.md for exactly what ships today versus what is on the roadmap. cMCP (Confidential MCP Runtime) is the secure, confidential way to run MCP: an open-source gateway that enforces MCP tool-call policy inside a hardware Trusted Execution Environment (TEE). Every tool call is intercepted, evaluated against a Cedar policy bundle, and enforced where the process it governs cannot reach it.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at GitHub.