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NousResearch/hermes-agent

MCP sampling crashes on non-object JSON arguments

Cluster 105551 · 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.

A bug where MCP sampling fails when tool arguments are valid JSON but not objects (e.g., arrays or primitives). Fixes involve normalizing or wrapping such values to prevent crashes.

Open issues1

  • Issue#105551[Bug]: MCP sampling crashes on valid non-object JSON tool arguments

Open PRs1

  • PR#105559fix: wrap valid non-object JSON MCP sampling tool arguments as {"_raw": ...}

1 PR closed without merging

From the close comments: duplicate 1

  • #105563 fix(mcp): normalize non-object sampling arguments · duplicate → #105559
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(structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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

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The same facts, typed.

cluster/105551.json
cluster/105551.md