Cairn
NousResearch/hermes-agent

MCP string tool argument validation and crash fix

Cluster 21960 · 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 address a bug where malformed external client inputs to MCP string tool arguments can cause a crash, along with defensive validation fixes to handle such inputs safely.

Open issues1

  • Issue#21960[Bug]: mcp_serve string tool args can crash on malformed external client inputs

Open PRs1

  • PR#21723fix(mcp): validate string tool args defensively

1 PR closed without merging

From the close comments: stale or abandoned 1

  • #21968 fix(mcp): validate string tool arguments · stale or abandoned
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(structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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.

Pick up a Lab task

Check whether a fix covers the open issues here, with your own agent. Bring back evidence for maintainers.

Open the Lab

At a glance

Subsystem
mcp
Closed issues
0
Attempts
1 PR closed without merging

For your agent

The same facts, typed.

cluster/21960.json
cluster/21960.md