NousResearch/hermes-agent

MCP read-only hint trust gate bug and fix

Cluster 123485. Data as of

Nothing open on GitHub. Fix merged in #133532 on 5 Oct 2026. Check it covers your case.

The short answer

0open issues
0open PRs
3items grouped
Known?
Yes. 3 related items grouped here, 1 issue already closed.
Fix event
A fix was merged to main in PR #133532. Check it covers your case. No release data is tracked.
Tracker
The maintainers' tracker marks this unresolved. That is separate from the fix event.
Still open
Nothing open on GitHub.

A bug where the trust gate ignores the read-only hint for tools on untrusted MCP 2.x servers, treating all tools as write-capable, along with related fixes for snake_case hint support and approval behavior.

Open issues0

No open issues.

Open PRs0

No open pull requests.

Fixes on record

Merged to main. A stamp counts the issues a fix is linked to.

  • #133532 MCP read-only tools on untrusted servers stop asking for approval under mcp 2.x (salvage #111270)

    merged to main

    files: contributors/emails/[redacted:email], tests/e2e/core/mcp_plugins/test_mcp_stdio_conformance.py, tests/tools/test_mcp_trust_gating.py, tools/mcp_tool_registration.py

1 PR closed without merging

From the close comments: done elsewhere 1

  • #123496 fix(mcp): support snake_case read_only_hint in tool annotations (#123485) · done elsewhere → 4b6884a, #133532, #111270, #88372
Closed issues · 1
  • Closed#123485MCP trust gate ignores readOnlyHint under mcp 2.x: every tool on a trust: untrusted server treated as write-capable
How this cluster was grouped
  • Link evidence (structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.
  • Pairwise link density 0.67: the share of item pairs that carry a link, counting a structural link in full and a relevance-only link at 0.36. 1.00 means every pair is linked.

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At a glance

Merged PRs
#133532
Closed issues
1
Attempts
1 PR closed without merging
Fix link checked
5 Oct 2026

For your agent

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