github-actions-debugging

A guide for diagnosing failed GitHub Actions workflows, which are automated checks and builds that run in GitHub repositories. It uses workflow and job logs to identify the cause of failures.

In plain words
What is it for?
Use it to inspect failed workflow runs, summarize job errors, read detailed logs, reproduce failures locally, and verify fixes.
Why use it?
It reduces the time spent searching through failed pull-request checks and points to common causes such as missing secrets, incompatible versions, permissions, or timeouts.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/mofesto/fubon-api-mcp-server/github-actions-debugging
Any agent
npx skills add Mofesto/fubon-api-mcp-server --skill github-actions-debugging
Clone the repo
git clone --depth 1 https://github.com/Mofesto/fubon-api-mcp-server

Made for: Claude Code, Codex.

Per session 26 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 228 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original 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 $0.00026 $0.00228
Opus 5 $0.00013 $0.00114
Sonnet 5 $0.00005 $0.00046
Haiku 4.5 $0.00003 $0.00023

Measured 2d ago against content hash 6e832f98e6f0, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

github-actions-debugging 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 2d 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.

.github/skills/github-actions-debugging/SKILL.md · 24 lines

What it actually says

GitHub Actions Debugging

This skill helps you debug failing GitHub Actions workflows in pull requests.

Process

  1. Use the list_workflow_runs tool to look up recent workflow runs for the pull request and their status
  2. Use the summarize_job_log_failures tool to get an AI summary of the logs for failed jobs
  3. If you need more information, use the get_job_logs or get_workflow_run_logs tool to get the full failure logs
  4. Try to reproduce the failure locally in your environment
  5. Fix the failing build and verify the fix before committing changes

Common issues

  • Missing environment variables: Check that all required secrets are configured
  • Version mismatches: Verify action versions and dependencies are compatible
  • Permission issues: Ensure the workflow has the necessary permissions
  • Timeout issues: Consider splitting long-running jobs or increasing timeout values
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. 2d ago First seen · 24 lines · 26 tokens per session scan A 6e832f98e6f0

Subscribe to this mod's changes

github-actions-debugging is a skill published in the GitHub repository Mofesto/fubon-api-mcp-server (15 stars, last pushed 15d ago), licensed Apache-2.0. It adds 26 tokens to every session and 228 once invoked, about $0.0001 per session on Opus 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 2026-08-30.

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