Upgrades Python pip/poetry/pipenv dependencies with breaking change handling
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Paths: File paths (
shared/,references/,../ln-*) are relative to skills repo root. If not found at CWD, locate this SKILL.md directory and go up one level for repo root.
Type: L3 Worker Category: 8XX Optimization Parent: ln-820-dependency-optimization-coordinator
Upgrades Python dependencies with automatic breaking change detection.
| Aspect | Details |
|---|---|
| Input | Project path, package manager type |
| Output | Updated requirements.txt/pyproject.toml |
| Supports | pip, poetry, pipenv |
Phases: Pre-flight → Detect Manager → Security Audit → Check Outdated → Apply Upgrades → Verify Installation → Report
| Check | Required | Action if Missing |
|---|---|---|
| requirements.txt OR pyproject.toml OR Pipfile | Yes | Block upgrade |
| Virtual environment active | No | Warn user (risk of system pollution) |
| Git clean state | Yes | Block (need clean baseline for revert) |
Workers assume coordinator (ln-820) already verified git state and created backup.
MANDATORY READ: Load shared/references/git_worktree_fallback.md — use ln-823 row.
| Manager | Indicator Files |
|---|---|
| pip | requirements.txt |
| poetry | pyproject.toml + poetry.lock |
| pipenv | Pipfile + Pipfile.lock |
| Manager | Command |
|---|---|
| pip | pip-audit --json |
| poetry | poetry audit (via plugin) |
| pipenv | pipenv check |
| Severity | Action |
|---|---|
| Critical | Block upgrade, report |
| High | Warn, continue |
| Moderate/Low | Log only |
| Manager | Command |
|---|---|
| pip | pip list --outdated --format=json |
| poetry | poetry show --outdated |
| pipenv | pipenv update --outdated |
| Manager | Command |
|---|---|
| pip | pip install --upgrade <package> |
| pip (freeze) | pip freeze > requirements.txt |
| poetry | poetry update |
| pipenv | pipenv update |
| Priority | Tool | When to Use |
|---|---|---|
| 1 | mcp__context7__query-docs | First choice for library docs |
| 2 | mcp__Ref__ref_search_documentation | Official docs and PyPI |
| 3 | WebSearch | Latest info, community solutions |
| Step | Tool | Parameters |
|---|---|---|
| 1. Find library | mcp__context7__resolve-library-id | libraryName: "pydantic" |
| 2. Query docs | mcp__context7__query-docs | query: "pydantic v1 to v2 migration breaking changes" |
| Action | Tool | Query Example |
|---|---|---|
| Search | mcp__Ref__ref_search_documentation | "python pydantic 2 migration guide" |
| Read | mcp__Ref__ref_read_url | URL from search results |
Use when Context7/Ref return no results:
"<package> python <version> breaking changes migration""<ImportError message> <package> fix"| Check | Command |
|---|---|
| Import test | python -c "import <package>" |
| Tests | pytest or python -m pytest |
| Field | Description |
|---|---|
| project | Project path |
| packageManager | pip, poetry, or pipenv |
| duration | Total time |
| upgrades[] | Applied upgrades |
| verification | PASSED or FAILED |
MANDATORY READ: Load breaking_changes_patterns.md for full patterns.
| Package | Breaking Version | Key Changes |
|---|---|---|
| pydantic | 1 → 2 | V1 compatibility layer needed |
| sqlalchemy | 1 → 2 | Query syntax changes |
| fastapi | 0.99 → 0.100+ | Pydantic v2 required |
Options:
# Upgrade scope
upgradeType: major # major | minor | patch
# Security
auditLevel: high
minimumReleaseAge: 14
# Python specific
pythonVersion: "3.12"
useVirtualenv: true
# Verification
runTests: true
| Error | Cause | Solution |
|---|---|---|
| ImportError | Breaking API change | Search Context7/Ref for migration |
| Dependency conflict | Version mismatch | Try pip-compile or poetry lock |
Version: 1.1.0 Last Updated: 2026-01-10
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Design, implement, and audit inclusive digital products using WCAG 2.2 Level AA standards. Use this skill to generate semantic ARIA for Web and accessibility traits for Web and Native platforms (iOS/Android).
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Whole site or product — a full web accessibility (a11y) audit against WCAG 2.2, following the WCAG-EM methodology. Defines scope, samples representative pages and flows, runs the automated tier (`accessibility-scan`) and the hands-on manual tier (`accessibility-inspect`), and produces one conformance report. Grades each finding by severity and evidence basis, and states per-criterion conformance as pass, fail, or undetermined (needs a human). Use it for 'audit my site for accessibility', 'is this product accessible', 'a11y audit', 'WCAG or Section 508 conformance report', or any multi-page assessment. Assesses; does not fix (use `accessibility-fix`) or diff (use `accessibility-diff`). For a single page use `accessibility-scan`; for hands-on keyboard and screen-reader checks use `accessibility-inspect`.
한국어 요약은 준비 중입니다. 원문 설명을 표시하고 있습니다.
Regression check — diff a live page's web accessibility (a11y) violations against a baseline. By default it compares your uncommitted changes (stash-based); pass `--branch [<name>]` to compare against a branch. Reports the new WCAG violations introduced, the ones fixed, and the count of pre-existing ones. Use it for 'did my change break accessibility', 'what a11y issues did this PR add', or as a CI gate. For a full scan of one page use `accessibility-scan`; for a whole site use `accessibility-audit`.
한국어 요약은 준비 중입니다. 원문 설명을 표시하고 있습니다.
Remediation only — repair web accessibility (a11y) violations against WCAG 2.2 with a baseline, edit, and verify loop. Takes a target (URL, files, directory) or a findings worklist from `accessibility-scan`/`accessibility-inspect`/`accessibility-audit`, applies mechanical fixes as given, leaves TODOs for visual or contextual judgment, and verifies by re-running the baseline check. It only fixes. To find issues use `accessibility-scan` (one page, automated), `accessibility-inspect` (one page, manual), or `accessibility-audit` (whole site, WCAG-EM); to check for regressions use `accessibility-diff`. Use it for 'fix the a11y issues in X', 'make this accessible', 'add missing alt text and labels', 'apply these accessibility fixes', 'remediate these violations'.
한국어 요약은 준비 중입니다. 원문 설명을 표시하고 있습니다.
One page, hands-on manual tier — drive a live page through the web accessibility (a11y) checks a rule engine can't decide: keyboard operation and focus order, screen-reader names, roles and states from the accessibility tree, reflow and zoom, reduced motion, form errors, and target size. Grades each finding by evidence basis (verified / confirm-with-a-human / human-required) and severity, and closes every criterion in a ledger: verified, flagged, not exercised, or N/A. Locates and assesses; does not fix (use `accessibility-fix`). Use it for keyboard testing, focus-order checks, screen-reader or a11y-tree review, reflow and zoom at 200%, or 'is this operable, not just lint-clean'. The automated tier is `accessibility-scan`; `accessibility-audit` runs both across a sampled site.
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One page, automated tier — run the web accessibility (a11y) rule engine against a live page and locate every violation it can detect mechanically. Pass a URL, a config target name (e.g. `accesslint:accessibility-scan dev`), or nothing to use the default target from `accesslint.config.json`. Ensures a debuggable Chrome, runs the @accesslint/core engine over CDP, and returns a worklist of live-DOM WCAG 2.2 violations, each grounded to its DOM selector and source `file:line`. Locates; doesn't edit. Use it for 'is this page accessible', 'check a11y on this URL', 'find contrast and alt-text issues', or to verify a UI change. For hands-on keyboard and screen-reader checks use `accessibility-inspect`; for a whole site or product use `accessibility-audit`; to diff against uncommitted changes or a branch use `accessibility-diff`.
한국어 요약은 준비 중입니다. 원문 설명을 표시하고 있습니다.