Cairn
NousResearch/hermes-agent

MCP tool name normalization and dispatch failures

Cluster 16817. Data as of

Nothing open on GitHub. Fix attempted, not merged.

The short answer

0open issues
0open PRs
3items grouped
Known?
Yes. 3 related items grouped here, 1 issue already closed.
Fix event
No fix has been merged to main. 2 PRs closed without merging; see the attempts below.
Tracker
The maintainers' tracker marks this unresolved. That is separate from the fix event.
Still open
Nothing open on GitHub.

These issues and fixes center on tool dispatch failures caused by naming mismatches—including stripped or added mcp_ prefixes, CamelCase/PascalCase drift, and _tool suffix variations—between how tools are registered and how Anthropic/Claude models emit tool names. Several fixes address normalization at dispatch, registry, and OAuth round-trip layers.

Open issues0

No open issues.

Open PRs0

No open pull requests.

2 PRs closed without merging

From the close comments: superseded by another PR 1 · other 1

  • #16820 fix: normalize Anthropic PascalCase MCP tool names · superseded by another PR → #16957
  • #16967 fix(agent): normalize Anthropic MCP tool names · other → #16817
Closed issues · 1
  • Closed#16817Anthropic MCP PascalCase tool responses do not normalize to registered tool names
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(structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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

Closed issues
1
Attempts
2 PRs closed without merging

For your agent

The same facts, typed.

cluster/16817.json
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