gjalla-debug

gjalla-debug is a skill for Claude Code from gjalla/engineering. It costs 43 tokens per session (1,102 once invoked), scanned A, original, no licence file.

A troubleshooting guide for finding the underlying cause of a reported software problem before suggesting a fix.

In plain words
What is it for?
Use it to investigate bugs, unexpected behavior, and user-reported issues with supporting evidence.
Why use it?
It helps avoid guessing when code is broken or behaving unexpectedly.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the gjalla plugin — 9 skills, 5 commands, 1 hook, 1 MCP server shipped together

Good fit Use it to investigate bugs, unexpected behavior, and user-reported issues with supporting evidence.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/gjalla/engineering/gjalla-debug
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add gjalla/engineering --skill gjalla-debug
Clone the repo
git clone --depth 1 https://github.com/gjalla/engineering

Made for: Claude Code.

Or install gjalla, the plugin that ships this one along with the rest of its 9 skills, 5 commands, 1 hook, 1 MCP server.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for gjalla-debug

README.md
[![agentmods](https://agentmods.dev/badge/skills/gjalla/engineering/gjalla-debug/github.svg)](https://agentmods.dev/skills/gjalla/engineering/gjalla-debug)
Your own site
<a href="https://agentmods.dev/skills/gjalla/engineering/gjalla-debug"><img src="https://agentmods.dev/badge/skills/gjalla/engineering/gjalla-debug/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for gjalla-debug

Your own site · 80×15
<a href="https://agentmods.dev/skills/gjalla/engineering/gjalla-debug"><img src="https://agentmods.dev/badge/skills/gjalla/engineering/gjalla-debug.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 43 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,102 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00043 $0.01102
Opus 5.5 $0.00017 $0.00441
Sonnet 5.5 $0.00009 $0.00220
Haiku 4.5 $0.00004 $0.00110

Measured 1mo ago against content hash 25d815548941, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

gjalla-debug scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/gjalla-debug/SKILL.md · 71 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 1mo ago First seen · 71 lines · 43 tokens per session scan A 25d815548941

Subscribe to this mod's changes

gjalla-debug is a skill published in the GitHub repository gjalla/engineering (3 stars, last pushed 1mo ago), with no licence file. It adds 43 tokens to every session and 1,102 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Related

Other skills, from other repositories

five-whys

Finds the root cause of a bug, failure or recurring problem by asking "why" until the answer is a cause you can fix. Use when the user asks why something keeps happening, or wants the root cause rather than a quick fix.

wesammustafa/Claude-Code-Everything-You-Need-to-Know · 53 tokens

eval-hooks

Audit Claude Code and Codex hooks for validity, safety, and correctness across settings.json, hooks.json, config.toml, plugin, and skill or agent frontmatter hooks. Resolves each command, checks event names, handler types, matchers, exit-code and JSON decision strategy, and timeouts against each host's documented…

FlorianBruniaux/claude-code-ultimate-guide · 115 tokens

check-cache-bugs

Audit Claude Code setup for cache bugs (CC#40524): sentinel, --resume/--continue, attribution header + ArkNill B3/B4/B5.

FlorianBruniaux/claude-code-ultimate-guide · 38 tokens

sandbox-unblock

Diagnostic protocol to run before reporting a sandbox blocker or asking for a configuration change. Eleven checks that eliminate false positives, then a report template the person holding the settings can act on. On one measured day, six of eight reported blockers turned out to be false, all from the same handful of…

FlorianBruniaux/claude-code-ultimate-guide · 65 tokens

investigate

Systematic root-cause debugging: find the cause before writing any fix.

FlorianBruniaux/claude-code-ultimate-guide · 17 tokens

qa

Systematic QA testing of a web application: diff-aware, tiered, with fix-and-verify loop.

FlorianBruniaux/claude-code-ultimate-guide · 23 tokens