Hard-won gotchas from the Python toolchain: importlib class identity, pip/PyPI name collisions, mock.patch.object vs __slots__, ruff on notebooks, and uv in fresh worktrees.
Plugin python-tooling from marketplace claude-skills in cajias/claude-skills. Commands read from the repo's manifest — 1 month ago.
importlib-reload-class-identityDiagnose and fix the silent class-identity drift caused by `importlib.reload()` on modules that define classes whose instances live elsewhere. Use when: (1) a pytest fixture uses `importlib.reload(some_module)` to "flush caches" and downstream tests then fail with `isinstance` checks rejecting objec
kronos-pypi-collisionFix for `pip install kronos` returning the wrong package when trying to use the financial K-line foundation model. Use when: (1) you intend to use the Kronos OHLCV/K-line transformer from arXiv 2508.02739 (Shi et al., AAAI 2026), (2) `pip install kronos` succeeds but `import kronos` fails with `Modu
python-slots-mock-patch-objectFix for `AttributeError: '<ClassName>' object attribute '<method>' is read-only` raised during `mock.patch.object()` teardown. Use when: (1) a Python test using `unittest.mock.patch.object(instance, "method")` passes the patched code but raises an AttributeError during context-exit (visible in the s
ruff-jupyter-diff-inflationPrevent or diagnose massive PR diffs (700-1000+ lines per .ipynb) when running `ruff check --fix` or `make lint-fix` in a Python project that checks in Jupyter notebooks. Use when: (1) a lint cleanup PR explodes from a small expected diff to thousands of lines; (2) `git diff` of a notebook shows `so
uv-worktree-venv-fallthroughFix for phantom Python test failures in fresh git worktrees of uv-managed projects, caused by `uv run` falling through to a PATH-resolved command (e.g. homebrew Python 3.9's pytest) when the worktree's `.venv` doesn't have the command installed. Use when: (1) `uv run pytest --collect-only -q` in a f
Hard-won gotchas from authoring and distributing Claude Code plugins, skills, hooks, and Workflow scripts. Bundles APM packaging traps, plugin cache and marketplace path failures, hook main-vs-subagent detection, Workflow meta parsing breaks, and orchestration verification playbooks.
16 skills
AIDE²-style recursive self-improvement loop: an outer agent iteratively rewrites an inner tree-search research agent, keeping a rewrite only when it beats the incumbent on private held-out scores under a fixed budget across an optimization / ML-engineering / harness-engineering battery. Standalone /rsi:autoresearch solves tasks by tree search; /rsi:init + /rsi:step + /rsi:run drive the outer loop.
2 skills · 6 commands · 2 agents · hooks
Design-and-build process skills: layered design docs, C4 architecture artifacts, Diataxis documentation, README authoring, a milestone execution harness, milestone goal-prompt generation, positive-framing spec guidance, and a schema drift playbook.
8 skills
Operational gotchas and references for third-party integrations driven from Claude Code — Cloudflare Workers, Grafana, Notion, OpenPencil, Playwright, and MCP file transport.
7 skills
Hard-won gotchas from real git and gh workflows: PR create/merge quirks, worktree races, rebase in non-interactive shells, squash-merge diagnosis, and deadlock recovery via plumbing.
6 skills
Hard-won gotchas from CI pipelines and build environments: GitHub Actions, Copilot CLI headless runs, cron block generation, Docker on Apple Silicon, and TypeScript monorepo scaffolding.
5 skills
Skill: add headroom-ai compress() to a Python or TypeScript app to cut LLM input tokens (tool outputs, logs, JSON, chat history). No API key.
1 skill
Generate natively editable PPTX from PDF / DOCX / URL / Markdown — real DrawingML shapes, text boxes, charts, and animations. Note: run `pip install -r requirements.txt` inside the installed plugin directory for the Python post-processing scripts to work.
1 skill
Install the "AAS Python Development" editorial skill bundle for Claude Code.
13 skills
Web scraping, Google search, structured data extraction, and MCP server integration powered by Bright Data. Includes 7 skills: scrape any webpage as markdown (with bot detection/CAPTCHA bypass), search Google with structured JSON results, extract data from 40+ websites (Amazon, LinkedIn, Instagram, TikTok, YouTube, and more), orchestrate Bright Data's 60+ MCP tools, built-in best practices for Web Unlocker, SERP API, Web Scraper API, and Browser API, Python SDK best practices for the brightda...
21 skills
Modern Python development with Python 3.12+, Django, FastAPI, async patterns, and production best practices
16 skills · 1 command · 3 agents
Web scraping, Google search, structured data extraction, and MCP server integration powered by Bright Data. Includes 7 skills: scrape any webpage as markdown (with bot detection/CAPTCHA bypass), search Google with structured JSON results, extract data from 40+ websites (Amazon, LinkedIn, Instagram, TikTok, YouTube, and more), orchestrate Bright Data's 60+ MCP tools, built-in best practices for Web Unlocker, SERP API, Web Scraper API, and Browser API, Python SDK best practices for the brightda...
21 skills
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