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NousResearch/hermes-agent

MCP protocol-version header sent on initialize request

Cluster 27569 · mcp. Data as of

2 open items. Fix attempted, not merged.

The short answer

1open issue
1open PR
3items grouped
Known?
Yes. 3 related items grouped here, 0 issues already closed.
Fix event
No fix has been merged to main. 1 PR closed without merging; see the attempts below.
Tracker
The maintainers' tracker marks this unresolved. That is separate from the fix event.
Still open
1 issue and 1 PR.

These members concern the mcp-protocol-version header being injected on the MCP initialize request, which a bug report says violates the MCP spec. Two members are fix proposals, one omitting the header on initialize and one removing the header injection from httpx client defaults.

Open issues1

  • Issue#27569[Bug]: `mcp-protocol-version` header injected on `initialize` request, violating MCP spec

Open PRs1

  • PR#38938fix(mcp): omit mcp-protocol-version header on initialize request (#27569)

1 PR closed without merging

From the close comments: closed without comment 1

  • #27574 fix(mcp): remove mcp-protocol-version header injection from httpx client defaults · closed without comment
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(structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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

Subsystem
mcp
Closed issues
0
Attempts
1 PR closed without merging

For your agent

The same facts, typed.

cluster/27569.json
cluster/27569.md