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NousResearch/hermes-agent

MCP tool registration and availability in ACP sessions

Cluster 42719 · acp. Data as of

Nothing open on GitHub. Fix merged in #115303. Check it covers your case.

The short answer

0open issues
0open PRs
5items grouped
Known?
Yes. 5 related items grouped here, 1 issue already closed.
Fix event
A fix was merged to main in PR #115303. Check it covers your case. No release data is tracked.
Tracker
The maintainers' tracker marks this resolved, deciding PR #115303. That is separate from the fix event.
Still open
Nothing open on GitHub.

These items concern registering client-provided MCP servers as agent tools and fixing cases where MCP toolsets are dropped or not exposed—particularly across model switches and in TUI/CLI/gateway contexts.

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.

  • #115303 fix(acp): session MCP tools survive a model switch (#42719, salvage #42753)

    merged to main

    files: acp_adapter/server.py, acp_adapter/session.py, tests/acp_adapter/test_acp_dashboard_model_switch_validation.py, tests/acp_adapter/test_session.py

3 PRs closed without merging

From the close comments: merged via another change 3

  • #30658 fix(acp): model switch via set_session_model discards ACP-injected MCP toolsets · merged via another change → #115303, #42753, #30658, #75722, #104474, #67540, #107359
  • #42753 fix(acp): preserve session MCP toolsets across model switches · merged via another change → #115303, #42753, #30658, #75722, #104474, #67540, #107359
  • #107359 fix(acp): preserve ACP-provided MCP tools across model switches and requests · merged via another change → #115303, #42753, #30658, #75722, #104474, #67540, #107359
Closed issues · 1
  • Closed#42719ACP-provided MCP tools are registered but dropped from the model request
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(structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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 0.40: 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
acp
Merged PRs
#115303
Closed issues
1
Attempts
3 PRs closed without merging
Fix link checked
18 Sep 2026

For your agent

The same facts, typed.

cluster/42719.json
cluster/42719.md