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Profiling slow API endpoints v1.0.0

Use this resource to find and measure why an API endpoint is slow in Postgres or Python

New

  • 375 downloads
  • 101 likes
  • 127 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install slow-api-endpoint-profiling

With no option, the skill goes to ~/.agents/skills/; add --agent claude-code (or codex, cursor…) to target an agent.

First time: connect the CLI with

npx --yes palatekit@latest login

The agent records the latency of the user action, reads APM traces, captures the exact work with a safe production EXPLAIN and compares the smallest useful change. It then verifies the result after deployment. You get before-and-after measurements rather than guesses.

Mostly picked by

Updated November 2, 2026

Card for the “Profiling slow API endpoints” skill

Details

Works in
Install guides
Generates with
Your agent's model
Licence
MIT

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What you get

  • SKILL.md: locating the delay and capturing the exact work
  • SKILL.md: comparing changes, tests, rollout and post-deploy checks

Good fit for

  • A screen, picker or list takes too long to load
  • A proposed database fix needs production evidence

Not for

    Tags

    • performance
    • api
    • postgres
    • profiling

    About

    You say

    “This list takes several seconds to load, find where the time goes in Postgres or Python.”

    Card for the “Profiling slow API endpoints” skill

    Skill published by posthog under the MIT license, delivered in its original version.

    Show more

    How to use it

    1. Install the skill in your agent's skills folder
    2. Ask your agent to find and measure why an API endpoint is slow in Postgres or Python
    3. Review and adjust the result

    Content preview

    Files

    • LICENSE1.5 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • SKILL.md4.1 KB

    Origin and licence

    Listed unmodified

    Author
    posthog
    Source
    github.com/posthog/posthog/tree/fcb362bb439b15171da4dfba401bff03ea98bd2b/.agents/skills/profiling-slow-api-endpoints
    Licence
    MIT

    Notice

    « profiling-slow-api-endpoints » (posthog, MIT) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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