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Debugging hard bugs with JSONL logs v1.0.0

Use this resource to debug a hard bug from real runtime logs

New

  • 357 downloads
  • 182 likes
  • 135 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install runtime-bug-debugging-logs

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 adds JSONL logging to the real runtime path, reproduces the problem, then reads the logs before proposing a fix. It applies to bugs involving state, ordering, persistence, streaming or concurrency, when tests do not capture the real failure.

Mostly picked by

Updated November 2, 2026

Card for the “Debugging hard bugs with JSONL logs” skill

Details

Works in
Install guides
Generates with
Your agent's model
Licence
Apache-2.0

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What you get

  • SKILL.md: when to use the method and what to log
  • SKILL.md: JSONL logging pattern for Node and TypeScript
  • SKILL.md: reproduction handoff to the user and analysis checklist

Good fit for

  • A test is red but you doubt it models the real problem
  • A streaming or persistence bug only appears under real conditions

Not for

    Tags

    • debugging
    • jsonl
    • logging
    • concurrency

    About

    You say

    “A message sometimes disappears on reload: add JSONL logs and reproduce the bug before fixing.”

    Card for the “Debugging hard bugs with JSONL logs” skill

    Skill published by mastra-ai under the Apache-2.0 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 debug a hard bug from real runtime logs
    3. Review and adjust the result

    Content preview

    Files

    • LICENSE1.2 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • SKILL.md7.5 KB

    Origin and licence

    Listed unmodified

    Author
    mastra-ai
    Source
    github.com/mastra-ai/mastra/tree/b6a821b39fa0b27ea0d138f17510e6e998ea3e87/.claude/skills/debugging-difficult-bugs
    Licence
    Apache-2.0

    Notice

    « debugging-difficult-bugs » (mastra-ai, Apache-2.0) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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