NousResearch/hermes-agent

browser_cdp check_fn network I/O causes schema instability

Cluster 70811. Data as of

Nothing open on GitHub. Fix merged in #72415 on 27 Jul 2026. Check it covers your case.

The short answer

0open issues
0open PRs
4items grouped
Known?
Yes. 4 related items grouped here, 1 issue already closed.
Fix event
A fix was merged to main in PR #72415. Check it covers your case. No release data is tracked.
Tracker
The maintainers' tracker marks this unresolved. That is separate from the fix event.
Still open
Nothing open on GitHub.

A bug was identified where the browser_cdp check_fn performs network I/O during tool schema evaluation, causing instability. Related fixes address keeping configured CDP endpoints schema-eligible without triggering discovery I/O.

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.

  • #72415 fix(browser): stale browser.cdp_url stalls every CLI/Desktop startup by 10+ seconds

    merged to main

    files: hermes_cli/doctor.py, tests/tools/test_browser_cdp_tool.py, tests/tools/test_browser_hybrid_routing.py, tests/tools/test_browser_lightpanda.py, tools/browser_cdp_tool.py, tools/browser_tool.py

2 PRs closed without merging

From the close comments: done elsewhere 2

  • #70904 fix(browser): prevent network I/O in browser_cdp check_fn from destabilizing tool schema (#70811) · done elsewhere → 731aa0c, #70811, #72415, #42059
  • #70940 fix(browser): keep configured CDP endpoints schema-eligible without discovery I/O · done elsewhere → 731aa0c, #72415, #42059
Closed issues · 1
  • Closed#70811[Bug]: browser_cdp check_fn performs network I/O and makes the tool schema unstable
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(structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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 0.50: 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

Merged PRs
#72415
Closed issues
1
Attempts
2 PRs closed without merging
Fix link checked
27 Jul 2026

For your agent

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