NousResearch/hermes-agent

surrogateescape handling in local file write paths

Cluster 79178. Data as of 2026-10-23 11:54 UTC

Nothing open on GitHub. Fix merged in #81964. Check it covers your case.

open issues

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items grouped

Known?: Yes. 5 related items grouped here, 1 issue already closed.
Fix event: A fix was merged to main in PR #81964. 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.

Next step: read #81964, then check it covers your case.

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These items concern a bug where surrogate-escaped bytes cause failures during local environment file writes. The work involves making file writes surrogateescape-safe while rejecting genuinely unencodable surrogates.

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.

#81964 fix(agent,gateway): lone-surrogate chokepoints \u2014 sanitize once at model-text exit and outbound assembly

merged to main

files: agent/conversation_loop.py, agent/turn_finalizer.py, contributors/emails/[redacted:email], gateway/run.py, hermes_cli/oneshot.py, tests/agent/test_surrogate_chokepoints.py, tests/hermes_cli/test_oneshot_surrogate.py, tests/tools/test_file_write_surrogate_roundtrip.py, tests/tools/test_process_registry_write_stdin_surrogates.py, tools/environments/base.py, tools/file_operations.py, tools/process_registry.py

3 PRs closed without merging

From the close comments: merged via another change 1 · superseded by another PR 1 · other 1

#79218 fix(tools): preserve surrogateescape bytes in local writes · superseded by another PR → #79234
#79234 fix: surrogateescape-safe file writes, reject unencodable surrogates (#79178) · other
#79240 fix: surrogateescape-safe file writes, reject unencodable surrogates (#79178) · merged via another change → #81964

Closed issues · 1

Closed#79178[Bug]: surrogateescape content fails in the real LocalEnvironment write path

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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(structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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

Merged PRs: #81964
Closed issues: 1
Attempts: 3 PRs closed without merging
Fix link checked: 8 Aug 2026

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