Fix Slow Endpoint
vpcarlos/profyle
Diagnose and fix a slow endpoint or request in a Python web app (FastAPI, Flask, Django, Tornado, any ASGI/WSGI framework) using real Profyle/VizTracer traces, then prove the fix by replaying the…
Build and upgrade Python services with explicit environments, validation, async boundaries and resource cleanup.
Install Python Backend
$ npx skills add WrongStack/WrongStack --skill python-backend -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install WrongStack/WrongStack python-backend --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/WrongStack/WrongStack.git skills-src && mkdir -p .claude/skills && cp -r skills-src/packages/core/skills/python-backend .claude/skills/python-backend && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "python-backend" agent skill from https://github.com/WrongStack/WrongStack/tree/main/packages/core/skills/python-backend into .claude/skills/python-backend/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "python-backend", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/WrongStack/WrongStack/tree/main/packages/core/skills/python-backendType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add WrongStack/WrongStack --skill python-backend -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install WrongStack/WrongStack python-backend --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/WrongStack/WrongStack.git skills-src && mkdir -p .agents/skills && cp -r skills-src/packages/core/skills/python-backend .agents/skills/python-backend && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "python-backend" agent skill from https://github.com/WrongStack/WrongStack/tree/main/packages/core/skills/python-backend into .agents/skills/python-backend/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "python-backend", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add WrongStack/WrongStack --skill python-backend -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install WrongStack/WrongStack python-backend --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/WrongStack/WrongStack.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/packages/core/skills/python-backend .cursor/skills/python-backend && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "python-backend" agent skill from https://github.com/WrongStack/WrongStack/tree/main/packages/core/skills/python-backend into .cursor/skills/python-backend/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "python-backend", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/WrongStack/WrongStack.git --path packages/core/skills/python-backend--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add WrongStack/WrongStack --skill python-backend -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install WrongStack/WrongStack python-backend --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/WrongStack/WrongStack.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/packages/core/skills/python-backend .gemini/skills/python-backend && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "python-backend" agent skill from https://github.com/WrongStack/WrongStack/tree/main/packages/core/skills/python-backend into .gemini/skills/python-backend/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "python-backend", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install WrongStack/WrongStack python-backendInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add WrongStack/WrongStack --skill python-backend -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/WrongStack/WrongStack.git skills-src && mkdir -p .github/skills && cp -r skills-src/packages/core/skills/python-backend .github/skills/python-backend && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "python-backend" agent skill from https://github.com/WrongStack/WrongStack/tree/main/packages/core/skills/python-backend into .github/skills/python-backend/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "python-backend", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add WrongStack/WrongStack --skill python-backend -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install WrongStack/WrongStack python-backend --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/WrongStack/WrongStack.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/packages/core/skills/python-backend .opencode/skills/python-backend && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "python-backend" agent skill from https://github.com/WrongStack/WrongStack/tree/main/packages/core/skills/python-backend into .opencode/skills/python-backend/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "python-backend", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
python-backend- GitHub stars
- 371
- Token cost
- ~789 tokens
- SKILL.md length
- 281 words
- Files
- 1
- Skills in repo
- 100
- Repo updated
- First seen
- Licence
- MIT
At a glance
Build and upgrade Python services with explicit environments, validation, async boundaries and resource cleanup.
- Works in 6 steps: Inspect pyproject/lockfile, interpreter,… → Validate incoming data and model output… → Keep blocking I/O and CPU work off async… → …
- Working on FastAPI
- SKILL.md covers Selection card, Overview, Rules and Workflow, plus 3 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Python Backend is an agent skill from WrongStack/WrongStack. Build and upgrade Python services with explicit environments, validation, async boundaries and resource cleanup. Use when working on FastAPI, Django or Python API/jobs; preserve the project framework and packaging workflow.
Its SKILL.md is about 790 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Backend & APIs, covering Backend development. It works with Python, Django and FastAPI. The repository describes itself as: An AI coding agent that reads your code, edits files, runs commands, and reasons through bugs — across a terminal REPL, a full-screen TUI, and a browser UI, while you keep your… The licence is MIT.
When your agent uses it
- Working on FastAPI
- Python API/jobs
- Preserve the project framework and packaging workflow
Example prompts
- “/python-backend”
Requirements
- Python 3
Workflow steps
6 steps, taken from the first numbered list in SKILL.md.
- Inspect pyproject/lockfile, interpreter, environment and deployment entrypoint.
- Validate incoming data and model output contracts; static annotations do not validate JSON.
- Keep blocking I/O and CPU work off async request loops; cancellation must propagate to owned work.
- Scope database sessions/clients and transactions to the operation; cleanup must run on failure.
- Keep secrets/config and public serialization explicit; object authorization remains at the data operation.
- Do not replace the project package manager or migrate frameworks as an incidental feature change.
What it can do on your machine
Read from SKILL.md and the folder at commit a744bdc. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
Links to these hosts (documentation or services it may open):
python.orgfastapi.tiangolo.comdocs.djangoproject.com
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Python Backend loads about 789 tokens when it runs. Until then it costs about 60 tokens; SKILL.md has 281 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from WrongStack/WrongStack at commit a744bdc, republished under its MIT licence (© WrongStack). 281 words, ~789 tokens.
Download SKILL.mdSave it as
.claude/skills/python-backend/SKILL.md (or your agent's skills folder).- name
- python-backend
- description
- Build and upgrade Python services with explicit environments, validation, async boundaries and resource cleanup. Use when working on FastAPI, Django or Python API/jobs; preserve the project framework and packaging workflow.
- trigger
- Build and upgrade Python services with explicit environments, validation, async boundaries and resource cleanup. Use when working on FastAPI, Django or Python…
- version
- 1.0.1
- required-capabilities
- filesystem.read
- optional-capabilities
- filesystem.write, execution.shell, verification.run, web.research
- metadata.routing-group
- backend
- metadata.domain
- backend
Python Backend
Selection card
- Task: Implement Python APIs and typed validation. / TR: Python API ve tipli doğrulama uygula.
- Start: Locate the endpoint, schema, authentication boundary and caller.
- Finish: apply the acceptance checks below; report observed results and unresolved constraints.
Overview
Build and upgrade Python services with explicit environments, validation, async boundaries and resource cleanup.
Checked 2026-10-09: Python 3.15.0, FastAPI 0.143.0, Django 6.1.2 and uv 0.12.24. Verify framework/native-wheel/Python support before combining them; latest Python can lead package support.
Rules
- Inspect pyproject/lockfile, interpreter, environment and deployment entrypoint.
- Validate incoming data and model output contracts; static annotations do not validate JSON.
- Keep blocking I/O and CPU work off async request loops; cancellation must propagate to owned work.
- Scope database sessions/clients and transactions to the operation; cleanup must run on failure.
- Keep secrets/config and public serialization explicit; object authorization remains at the data operation.
- Do not replace the project package manager or migrate frameworks as an incidental feature change.
Workflow
- Trace the request/job path and current framework/environment conventions.
- Verify latest stable targets and support requirements; read migration notes.
- Implement the feature with typed/validated boundaries and explicit resource ownership.
- Test input/errors, database rollback, cancellation and application startup.
- Run configured formatting/lint/type/tests and the real service entrypoint.
Before returning
Interpreter/environment and compatibility clear; validation/async/resource semantics tested; framework/service checks reported.
Sources
Versioned facts checked 2026-10-09; refresh authoritative sources before new installs/upgrades. Python releases, FastAPI, Django.
Skills in scope
- api-design — api design contracts and verification.
- database-development — implement database access, models and queries with explicit consistency, transactions and bounded results.
- queues-jobs — implement reliable asynchronous jobs and message consumers with explicit delivery, retry and shutdown semantics.
- testing — testing contracts and verification.
© WrongStack, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in packages/core/skills/python-backend of WrongStack/WrongStack.
Open the folder on GitHubat commit a744bdc
Compare with similar skills
Python Backend next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Python Backend this skillWrongStack/WrongStack | 371 | — | ~789 | Automated safety check: Pass | MIT | |
| Fix Slow Endpointvpcarlos/profyle | 123 | — | ~2.1k | Automated safety check: Pass | MIT | |
| Framework Migration AssistantArabelaTso/Skills-4-SE | 253 | — | ~1.9k | Automated safety check: Pass | Apache-2.0 | |
| Sentry Python SDKgetsentry/sentry-for-ai | 268 | — | ~4.1k | Automated safety check: Pass | Apache-2.0 | |
| Python PatternsxenitV1/Antigravity-Workflows | 130 | 7 repos | ~2.2k | Automated safety check: Pass | MIT | |
| Python Appservice Deploymicrosoft/GitHub-Copilot-for-Azure | 255 | 1 repos | ~688 | Automated safety check: Pass | MIT |
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Related
Categories
Questions about Python Backend
What does Python Backend do?
Build and upgrade Python services with explicit environments, validation, async boundaries and resource cleanup. Python Backend is an agent skill from WrongStack/WrongStack. Build and upgrade Python services with explicit environments, validation, async boundaries and resource cleanup.
When should I use Python Backend?
Python Backend fits situations like: working on FastAPI; Python API/jobs; preserve the project framework and packaging workflow.
How do I install Python Backend in Claude Code?
Run `npx skills add WrongStack/WrongStack --skill python-backend -a claude-code`. Or copy the skill folder (packages/core/skills/python-backend in WrongStack/WrongStack) into .claude/skills/python-backend in your project. Claude Code loads it when a task matches its description.
How do I install Python Backend in Codex?
Run `npx skills add WrongStack/WrongStack --skill python-backend -a codex`. Or copy the skill folder (packages/core/skills/python-backend in WrongStack/WrongStack) into .agents/skills/python-backend in your project. Codex loads it when a task matches its description.
Can I use Python Backend in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add WrongStack/WrongStack --skill python-backend -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/python-backend, .gemini/skills/python-backend, .github/skills/python-backend and .opencode/skills/python-backend in your project.
What does Python Backend need to run?
SKILL.md names no scripts, command-line tools or credentials: Python Backend is instructions for the agent only. Our summary lists: Python 3.
Does Python Backend access the network?
SKILL.md names 3 domains. As links in the text: python.org, fastapi.tiangolo.com and docs.djangoproject.com. This is read from the text; nothing was executed.
Is Python Backend safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Python Backend use?
Python Backend is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Python Backend use?
About 789 tokens (SKILL.md is roughly 3.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Python Backend?
Skills that share tags, products or a category with Python Backend: Fix Slow Endpoint (vpcarlos/profyle, 123 stars), Framework Migration Assistant (ArabelaTso/Skills-4-SE, 253 stars), Sentry Python SDK (getsentry/sentry-for-ai, 268 stars) and Python Patterns (xenitV1/Antigravity-Workflows, 130 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Python Backend?
WrongStack (a GitHub organization) maintains it in WrongStack/WrongStack, which has 371 GitHub stars. The repository holds 100 skills in this directory. The repository was last updated on October 10, 2026.
Source: WrongStack/WrongStack on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.