NousResearch/hermes-agent

Request middleware chaining drops earlier rewrites

Cluster 128638. Data as of 2026-10-24 20:38 UTC

Nothing open on GitHub. Fix merged in #133159 on 5 Oct 2026. Check it covers your case.

open issues

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Known?: Yes. 4 related items grouped here, 1 issue already closed.
Fix event: A fix was merged to main in PR #133159. Check it covers your case. No release data is tracked.
Tracker: The maintainers' tracker marks this resolved, deciding PR #133159. That is separate from the fix event.
Still open: Nothing open on GitHub.

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A bug where registering multiple llm_request or tool_request middleware callbacks causes earlier rewrites to be lost, along with fixes addressing middleware composition and mutation leaks.

Open issues0

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Open PRs0

No open pull requests.

Fixes on record

Merged to main. A stamp counts the issues a fix is linked to.

#133159 Request middleware rewrites now compose instead of the last one winning (#128638, salvage #128704)

merged to main

files: hermes_cli/middleware.py, hermes_cli/plugins_dispatch.py, tests/hermes_cli/test_plugins_middleware_chain.py

2 PRs closed without merging

From the close comments: done elsewhere 1 · merged via another change 1

#128643 fix(plugins): chain request middleware so each callback sees the previous rewrite · done elsewhere → #133159, #128704
#128704 fix(plugins): compose request middleware without mutation leaks · merged via another change → #133159

Closed issues · 1

Closed#128638[Bug]: a second `llm_request` / `tool_request` middleware drops the first one's rewrite

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(structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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: #133159
Closed issues: 1
Attempts: 2 PRs closed without merging
Fix link checked: 5 Oct 2026

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