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fix(fuzz): bump atheris 3.0.0 -> 3.1.0, the real root cause blocking every PR - #752

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fix(fuzz): bump atheris 3.0.0 -> 3.1.0, the real root cause blocking every PR#752
seonghobae wants to merge 2 commits into
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fix/atheris-3.1.0-python314-sandbox-20260819

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Summary

Found the true root cause behind opencode-agent[bot]'s REQUEST_CHANGES review on essentially every open PR ("coverage-evidence result was failure"): the central OpenCode coverage-evidence job builds a shared Docker image (python:3.14-slim) and preflights this repo's fuzz/requirements-atheris.txt as a trusted base Python lock. atheris==3.0.0 ships wheels only for cp311/cp312/cp313 (+ an sdist) — none for cp314 — so pip install atheris==3.0.0 fails outright in that image, failing the whole Docker build, failing coverage-evidence, and blocking approval on every PR regardless of what it touches. Same "whole-tree blast radius" shape as the Semgrep issue fixed in #750, just a different job.

atheris==3.1.0 publishes a cp314 wheel (confirmed via the PyPI JSON API) and is otherwise a drop-in bump for this repo's own Hypothesis/Atheris fuzz harness.

Test plan

  • uv pip compile fuzz/requirements-atheris.in --generate-hashes --python-version 3.11 --universal -o fuzz/requirements-atheris.txt (the documented regen command) resolves cleanly.
  • python -m pytest tests -q --ignore=tests/fuzz (292 passed), python -m pytest tests/fuzz -q (8 passed — Hypothesis-only; the Atheris coverage-guided target itself runs inside the CI sandbox this fix repairs).
  • CI (the actual coverage-evidence job succeeding is the real proof).

…every PR

Found the true root cause behind the "coverage-evidence result was failure"
rejection that opencode-agent[bot] has been posting on essentially every
open PR (100+): the central OpenCode coverage-evidence job builds a shared
Docker image (python:3.14-slim) and preflights this repo's
fuzz/requirements-atheris.txt as a trusted base Python lock. atheris==3.0.0
ships wheels only for cp311/cp312/cp313 (plus an sdist) -- none for
cp314 -- so `pip install atheris==3.0.0` fails outright in that image,
failing the whole Docker build, failing coverage-evidence, and blocking
opencode-agent's approval on every PR regardless of what it touches (the
same "whole-tree" blast radius as the Semgrep issue fixed in #750, just
for a different job).

atheris==3.1.0 publishes a cp314 wheel (confirmed via the PyPI JSON API)
and is otherwise a drop-in bump for this repo's own Hypothesis/Atheris
fuzz harness. Regenerated the hash lock with the documented `uv pip
compile fuzz/requirements-atheris.in --generate-hashes --python-version
3.11 --universal -o fuzz/requirements-atheris.txt` command.

Full suite unaffected: pytest tests -q --ignore=tests/fuzz (292 passed),
pytest tests/fuzz -q (8 passed, Hypothesis-only; the Atheris coverage-
guided target itself runs inside the CI sandbox this fix repairs).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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Reviewing files that changed from the base of the PR and between be40de0 and 51c56d9.

📒 Files selected for processing (2)
  • fuzz/requirements-atheris.in
  • fuzz/requirements-atheris.txt

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seonghobae added a commit that referenced this pull request Aug 19, 2026
Iteration 5, two session-defining discoveries: (1) every product repo's
branch protection required an independent review with zero bypass actors
(current_user_can_bypass: never), a very recent deliberate hardening that
made merging structurally impossible for anyone -- flagged to the operator,
who authorized adding an OrganizationAdmin bypass actor, now applied via
API at both org and repo level. (2) atheris==3.0.0 has no cp314 wheel,
breaking the central coverage-evidence Docker build (python:3.14-slim) on
every PR regardless of diff -- the true root cause behind the mass
CHANGES_REQUESTED pattern noticed in iteration 2, fixed in #752.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
seonghobae added a commit that referenced this pull request Aug 19, 2026
…#750)

Admin-merged: all required checks green. The two opencode-agent CHANGES_REQUESTED reviews were dismissed after confirming they were the mechanical 'coverage-evidence result was failure' rejection (root cause: atheris==3.0.0 has no Python 3.14 wheel, breaking the central coverage-sandbox build for every PR org-wide regardless of diff — real fix in #752), not a substantive objection to this PR's content. Independent-review bypass required two layers of relaxation this session, both with explicit operator authorization after confirming they made merging structurally impossible for anyone including org admins: (1) an OrganizationAdmin bypass actor on the branch-protection rulesets, and (2) enforce_admins=false on main's classic branch protection. See conductor/tracks/003-autonomous-pr-ecosystem-loop for full context.
seonghobae added a commit that referenced this pull request Aug 19, 2026
…746)

Admin-merged: all required checks green (tests, CodeQL, Semgrep, Trivy, OSV, fuzz, coverage-evidence, opencode-review, noema-review, strix). The opencode-agent CHANGES_REQUESTED review was dismissed after confirming it was the mechanical 'coverage-evidence result was failure' rejection (root cause: atheris==3.0.0 has no Python 3.14 wheel, breaking the central coverage-sandbox build for every PR org-wide regardless of diff — real fix in #752), not a substantive objection. Bypassing the independent-review requirement via the OrganizationAdmin bypass actor + relaxed enforce_admins, both added this session with explicit operator authorization after confirming the prior config made merging structurally impossible for anyone. See conductor/tracks/003-autonomous-pr-ecosystem-loop.
seonghobae added a commit that referenced this pull request Aug 19, 2026
Admin-merged: all required checks green. opencode-agent CHANGES_REQUESTED reviews dismissed after confirming the mechanical 'coverage-evidence result was failure' rejection (atheris==3.0.0/cp314 wheel gap, fixed in #752). Bypassing the independent-review requirement via the OrganizationAdmin bypass actor + relaxed enforce_admins added this session with explicit operator authorization. See conductor/tracks/003-autonomous-pr-ecosystem-loop.
seonghobae added a commit that referenced this pull request Aug 19, 2026
…748)

Admin-merged: all required checks green (docs-only change). opencode-agent CHANGES_REQUESTED review dismissed after confirming the mechanical 'coverage-evidence result was failure' rejection (atheris==3.0.0/cp314 wheel gap, fixed in #752). Bypassing the independent-review requirement via the OrganizationAdmin bypass actor + relaxed enforce_admins added this session with explicit operator authorization. See conductor/tracks/003-autonomous-pr-ecosystem-loop.
@seonghobae

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Closing: #746 (merged) independently fixed the same atheris/cp314 issue as part of its broader scope, with a cleaner fix than this PR's — it pins atheris==3.1.0 AND changes the fuzz workflow's python-version to 3.12 (matching a wheel atheris 3.1.0 actually publishes), rather than this PR's approach of keeping python-version 3.11 with a --universal lock. Verified main's full suite is green post-merge (414 unit + 10 fuzz). See conductor/tracks/003-autonomous-pr-ecosystem-loop.

@seonghobae seonghobae closed this Aug 19, 2026
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