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State the Subprocess Encoding Rule Where Carriers Read Python Style - #3120
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A text-mode subprocess call that names no encoding decodes with the locale encoding, which is UTF-8 on Linux and a legacy code page on Windows, so the omission passes on Linux and misreads non-ASCII output on a Windows host, and no linter in the toolchain checks for it. State the rule and its reason under the python-codestyle Skill's patterns to avoid, where CODESTYLE.md says the Python rules live, so every carrier reads it, and regenerate the distributions. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The locale encoding is only the default below Python 3.15 and outside UTF-8 Mode, and a runtime warning exists even though no static check does, so state the reason with that bound and drop the claim that naming the encoding is the only guard. Split the long sentence. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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The title identifies the main change: adding a subprocess encoding rule to the Python style guidance. It is specific and related to the changeset, although the phrase “Where Carriers Read Python Style… |
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What changed in this PR
Documents a fleet-wide Python style rule requiring explicit encodings for text-mode subprocess calls and regenerates distributed skill files.
Changes:
- Adds the subprocess encoding rule to the canonical reference.
- Regenerates GitHub and Claude skill copies.
- Updates the source digest.
| File | Description |
|---|---|
.github/skills/python-codestyle/references/code-style.md |
Generated GitHub distribution |
.claude-plugin/fleet-skills/skills/python-codestyle/references/code-style.md |
Generated Claude distribution |
.claude-plugin/fleet-skills/.source-digests/python-codestyle |
Updated source digest |
.agents/skills/python-codestyle/references/code-style.md |
Canonical encoding rule |
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Review comments at @.agents/skills/python-codestyle/references/code-style.md:
- Around line 93-94: Update the UTF-8 Mode discussion to describe Unix encoding
as dependent on the active LC_CTYPE locale, not guaranteed UTF-8, and Windows
encoding as the ANSI code page; state that output using a different encoding can
be misread or rejected on either platform.
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The locale encoding is UTF-8 on an ordinary Linux host rather than on every one, so state that it follows the locale and that the omission misreads or rejects non-ASCII output on any non-UTF-8 host, a Windows host being the common case. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The default misreads only when the child writes an encoding other than the locale's, so the rule now asks for the encoding the child actually writes and states that precondition on the failure. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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A call that only feeds a child's stdin is in scope too, so the rule names the encoding the child uses on that pipe rather than only the one it writes, and the errors sentence covers a character outside the encoding as well as a byte. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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… Fixes to Main (#3146) - #3135 makes `gh-write-guard` read a gh write's subcommand and target the way gh parses them: the subcommand is found past flags before the command and before the subcommand, an `R` inside a short-option cluster is read as a target, `GH_REPO` is read as a target, a run-time repository owner on a write fails closed, and a run-time word where `pr` or `merge` goes fails closed beside `--admin` or where word splitting may split it - #3139 releases the bootstrap lock when a `bootstrap.ps1` run ends rather than when its process does, so a second run typed at the same pwsh prompt is no longer refused the lock - #3130 matches tool names and the `all` keyword by case in the Windows agents loaders, as the Linux loaders already do - #3128 reads CodeRabbit's rate limit on a reply to an explicit review command in `pr_review.py` - #3126 reconciles VSCode-Server-DotNetCore in the hub after its resync - #3124 logs the Docker task's build-base leg in to Docker Hub - #3122 names the carried skill and the skipped review correctly - #3120 states the subprocess encoding rule in `CODESTYLE.md`, where carriers read Python style - #3118 and #3111 move the release-guard tests' workflow-command checks onto `runner_commands`, and test the alternatives wiring at the `audit_repo` and `fidelity_pass` call sites - #3116 stops the doc gates' printed names forging workflow commands - #3113 adds a catalog snippet for the release-with-smoke caller - #3109 moves the `workflow_reuse` fetch onto `audit.contents_text` - #3105 accepts `.codecov.yml` as an alternative to `codecov.yml` - #3103 adds a pip ecosystem to the carried Dependabot snippet - #3100 prefers the venv's ruff and pyright for a declared pip directory - #3098 tracks composite action pins in Dependabot - #3096 reads an uppercase Markdown suffix as Markdown at every prose gate branch After this merges, the host-safety installer payload changes, so the maintainer runs the installer after promotion. Closes #1416 Closes #1425 Closes #1578 Closes #1874 Closes #1892 Closes #1899 Closes #2804 Closes #2850 Closes #2852 Closes #2854 Closes #2996 Closes #3065 Closes #3067 Closes #3069 Closes #3079 Closes #3080 Closes #3089 Closes #3093 Closes #3101 Closes #3106 Closes #3107 Closes #3137 🤖 Generated with [Claude Code](https://claude.com/claude-code) <!-- This is an auto-generated comment: release notes by coderabbit.ai --> ## Summary by CodeRabbit * **New Features** * Added a pull-request smoke build that runs when relevant release files change and reports the combined validation and build status. * Repository audits now recognize `.codecov.yml` as an alternative to `codecov.yml`. * **Improvements** * Python linting and type checks use tools from declared project environments when available, with fallbacks for missing tools. * Workflow and lint reports safely display unusual filenames and command-like text. * GitHub write-target checks now account for additional command forms and fail closed when targets cannot be verified. * Rate-limit detection now recognizes another CodeRabbit response format. <!-- end of auto-generated comment: release notes by coderabbit.ai -->
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Summary
States the subprocess encoding rule where a fleet carrier reads Python style: every text-mode
subprocesscall names itsencoding, and what a byte outside that encoding is worth is a per-callerrorsdecision, the strict default deciding it by raising.CODESTYLE.md's Python section is a pointer to thepython-codestyleSkill, so the rule goes under "Patterns to avoid" in.agents/skills/python-codestyle/references/code-style.md, which the pointer's scope sketch already names. The pointer itself needs no change. The rule carries its reason: below Python 3.15, outside UTF-8 Mode, an unnamed encoding falls to the locale encoding, usually UTF-8 on Linux and the ANSI code page on Windows, so a child writing UTF-8 is misread or rejected on any non-UTF-8 host, and no static check in the ruff, pyright, or mypy toolchain looks for the omission. The call names the encoding its child uses on that pipe, in both directions. It states the rule rather than this repository's own test, since a carrier gets the rule and not the mechanism.The generated distributions are regenerated with
scripts/build_dist.py.Verification
python3 scripts/build_dist.py --check: current.python3 scripts/prose_lint.py --diff <merge-base>, with and without--check sentence-length: clean.python3 scripts/docker_lint.pyfor markdownlint, cspell, and editorconfig-checker: 0 issues.python3 spec/validate.py: OK.local-strict-review: round 1 raised 3 findings (a sentence over the length limit, the reason unbounded by UTF-8 Mode and Python 3.15, and an "only guard" claim that did not follow), all fixed in 9dbef04. Round 2 raised none. CodeRabbit's locale finding was fixed in 1974fa9, and the passes after it raised two more (a misread tied to the host rather than the child, and a rule covering only the read direction), fixed in e0af782 and 11691d4. The final pass, on 11691d4, raised none.Closes on promotion: #1578
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