Official agent skill

Troubleshooting Application Failures

by aws in aws/agent-toolkit-for-aws

Troubleshoots failing applications by discovering and analyzing CloudWatch log groups to identify error patterns, root causes, and actionable solutions.

OfficialApache-2.0Auto-check passedDevelopment

Install Troubleshooting Application Failures

skills CLI
$ npx skills add aws/agent-toolkit-for-aws --skill troubleshooting-application-failures -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install aws/agent-toolkit-for-aws troubleshooting-application-failures --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/aws/agent-toolkit-for-aws.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/specialized-skills/operations-skills/troubleshooting-application-failures .claude/skills/troubleshooting-application-failures && rm -rf skills-src

Use ~/.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/

Facts

Skill name
troubleshooting-application-failures
GitHub stars
2.8k
Token cost
~334 tokens
SKILL.md length
108 words
Files
2 (incl. references)
Skills in repo
138
Repo updated
First seen
Licence
Apache-2.0

At a glance

Troubleshoots failing applications by discovering and analyzing CloudWatch log groups to identify error patterns, root causes, and actionable solutions.

  • An application is experiencing failures and log-based diagnosis is needed
  • SKILL.md covers Overview, Troubleshoot a failing… and Troubleshooting
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
  • Tasks that involve Root cause analysis

What it does

Troubleshooting Application Failures is an agent skill from aws/agent-toolkit-for-aws, published by the product's own GitHub organization. Troubleshoots failing applications by discovering and analyzing CloudWatch log groups to identify error patterns, root causes, and actionable solutions. Use when an application is experiencing failures and log-based diagnosis is needed.

Its SKILL.md is about 330 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/application-failure-troubleshooting.md`).

It sits in Development, covering Root cause analysis. It works with Amazon Web Services and AWS Lambda. The repository describes itself as: Official, AWS-supported MCP servers, skills, and plugins to help AI agents build on AWS. The licence is Apache-2.0.

When your agent uses it

  • An application is experiencing failures and log-based diagnosis is needed
  • Tasks that involve Root cause analysis

Example prompts

  • “Use the troubleshooting-application-failures skill to troubleshoot failing applications by discovering and analyzing CloudWatch log groups to…”
  • “/troubleshooting-application-failures”

What it can do on your machine

Read from SKILL.md and the folder at commit bd49cc8. 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

    No URLs in SKILL.md.

    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

Troubleshooting Application Failures loads about 334 tokens when it runs, and up to ~4.5k if it reads all its reference files. Until then it costs about 68 tokens; SKILL.md has 108 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~68
When it runs · the whole SKILL.md, loaded when a task matches
~334
With references · SKILL.md plus every file in references/, read only if the agent opens them
~4.5k

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 aws/agent-toolkit-for-aws at commit bd49cc8, republished under its Apache-2.0 licence (© aws). 108 words, ~334 tokens.

Download SKILL.mdSave it as .claude/skills/troubleshooting-application-failures/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
troubleshooting-application-failures
description
Troubleshoots failing applications by discovering and analyzing CloudWatch log groups to identify error patterns, root causes, and actionable solutions. Use when an application is experiencing failures and log-based diagnosis is needed.
version
1

Application Failure Troubleshooting

Overview

Domain expertise for diagnosing application failures through CloudWatch log analysis. Discovers relevant log groups, searches for error patterns and stack traces, performs root cause analysis, and generates prioritized remediation recommendations.

Troubleshoot a failing application

To diagnose and resolve application failures using CloudWatch logs, follow the procedure exactly. See Application failure troubleshooting procedure.

Troubleshooting

No log groups found

Ask the user for specific log group names. Common patterns: /aws/lambda/function-name, /aws/apigateway/api-name, or custom application log groups.

Access denied errors

Verify AWS credentials have logs:DescribeLogGroups, logs:DescribeLogStreams, logs:StartQuery, and logs:GetQueryResults permissions.

Query timeouts

Reduce the time window or limit results. Large log groups may require multiple smaller queries.

© aws, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file (references) in skills/specialized-skills/operations-skills/troubleshooting-application-failures of aws/agent-toolkit-for-aws.

  • SKILL.md
  • references/application-failure-troubleshooting.md

Open the folder on GitHubat commit bd49cc8

Compare with similar skills

Troubleshooting Application Failures 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.

Troubleshooting Application Failures compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Troubleshooting Application Failures this skillaws/agent-toolkit-for-aws2.8k—~334Automated safety check: PassApache-2.0
Nx Plugin For AWSawslabs/nx-plugin-for-aws151—~3.6kAutomated safety check: PassApache-2.0
AWS Sam Bootstrapgiuseppe-trisciuoglio/developer-kit355—~954Automated safety check: NotesMIT
AWS Serverless Edazxkane/aws-skills3674 repos~3.2kAutomated safety check: PassMIT
New Event Sourceaws/aws-lambda-dotnet1.7k—~3kAutomated safety check: PassApache-2.0
AWS Cloud Advisortech-leads-club/agent-skills7k—~2.1kAutomated safety check: PassCC-BY-4.0

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Categories

Questions about Troubleshooting Application Failures

What does Troubleshooting Application Failures do?

Troubleshoots failing applications by discovering and analyzing CloudWatch log groups to identify error patterns, root causes, and actionable solutions. Troubleshooting Application Failures is an agent skill from aws/agent-toolkit-for-aws, published by the product's own GitHub organization. Troubleshoots failing applications by discovering and analyzing CloudWatch log groups to identify error patterns, root causes, and actionable solutions.

When should I use Troubleshooting Application Failures?

Troubleshooting Application Failures fits situations like: an application is experiencing failures and log-based diagnosis is needed; tasks that involve Root cause analysis.

How do I install Troubleshooting Application Failures in Claude Code?

Run `npx skills add aws/agent-toolkit-for-aws --skill troubleshooting-application-failures -a claude-code`. Or copy the skill folder (skills/specialized-skills/operations-skills/troubleshooting-application-failures in aws/agent-toolkit-for-aws) into .claude/skills/troubleshooting-application-failures in your project. Claude Code loads it when a task matches its description.

How do I install Troubleshooting Application Failures in Codex?

Run `npx skills add aws/agent-toolkit-for-aws --skill troubleshooting-application-failures -a codex`. Or copy the skill folder (skills/specialized-skills/operations-skills/troubleshooting-application-failures in aws/agent-toolkit-for-aws) into .agents/skills/troubleshooting-application-failures in your project. Codex loads it when a task matches its description.

Can I use Troubleshooting Application Failures 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 aws/agent-toolkit-for-aws --skill troubleshooting-application-failures -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/troubleshooting-application-failures, .gemini/skills/troubleshooting-application-failures, .github/skills/troubleshooting-application-failures and .opencode/skills/troubleshooting-application-failures in your project.

What does Troubleshooting Application Failures need to run?

SKILL.md names no scripts, command-line tools or credentials: Troubleshooting Application Failures is instructions for the agent only.

Does Troubleshooting Application Failures access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Troubleshooting Application Failures 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 Troubleshooting Application Failures use?

Troubleshooting Application Failures is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Troubleshooting Application Failures use?

About 334 tokens (SKILL.md is roughly 1.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 4.2k tokens, read only when the agent opens those files.

What are the alternatives to Troubleshooting Application Failures?

Skills that share tags, products or a category with Troubleshooting Application Failures: Nx Plugin For AWS (awslabs/nx-plugin-for-aws, 151 stars), AWS Sam Bootstrap (giuseppe-trisciuoglio/developer-kit, 355 stars), AWS Serverless Eda (zxkane/aws-skills, 367 stars) and New Event Source (aws/aws-lambda-dotnet, 1.7k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Troubleshooting Application Failures?

aws (a GitHub organization, an official publisher) maintains it in aws/agent-toolkit-for-aws, which has 2,816 GitHub stars. The repository holds 138 skills in this directory. The repository was last updated on October 7, 2026.

Source: aws/agent-toolkit-for-aws on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.