Errors

What it does

When your agent uses it

• Handling errors
• Fixing failures
• Troubleshooting session issues

Example prompts

• “/errors”

Requirements

• Python 3
• Node.js
• Docker
• Compatibility (from SKILL.md): Claude Code 2.1.277+. Requires memory MCP server.
• Pre-approved tools (allowed-tools): Read, Bash, Grep

What it can do on your machine

Read from SKILL.md and the folder at commit 02bbf9a. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves these tools, so the agent can use them without asking each time:

  • Read
  • Bash
  • Grep

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  Shell commands in SKILL.md call:

  • python
  • jq
  • npm
  • claude

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  No URLs in SKILL.md. Its commands use npm, which can reach the network depending on how they are called.

  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.

• Compatibility

  Claude Code 2.1.277+. Requires memory MCP server.

  From compatibility in the SKILL.md frontmatter.

Context cost

Errors loads about 1.2k tokens when it runs. Until then it costs about 98 tokens; SKILL.md has 210 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~98

When it runs · the whole SKILL.md, loaded when a task matches

~1.2k

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

• NotePre-approves every shell command (allowed-tools: Bash)SKILL.md

  allowed-tools: Read, Bash, Grep

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 yonatangross/orchestkit at commit 02bbf9a, republished under its MIT licence (© yonatangross). 210 words, ~1,182 tokens.

name

errors

description

Error pattern analysis and troubleshooting for Claude Code sessions. Categorizes errors (network, auth, model, tool, memory, permission) with known resolution patterns, searches memory for prior occurrences, and suggests recovery steps. Delegates to debug-investigator agent for complex root cause analysis. Use when handling errors, fixing failures, or troubleshooting session issues.

allowed-tools

Read, Bash, Grep

compatibility

Claude Code 2.1.277+. Requires memory MCP server.

license

MIT

context

inherit

user-invocable

false

effort

low

model

haiku

metadata.category

document-asset-creation

metadata.mcp-server

memory

metadata.version

1.0.0

metadata.author

OrchestKit

metadata.complexity

low

/errors              # Batch analysis of historical error patterns
/debug               # CC 2.1.30 real-time debug for current session

# Run batch analysis on last 24h of errors
python .claude/scripts/analyze_errors.py

# Analyze last 7 days
python .claude/scripts/analyze_errors.py --days 7

# Generate markdown report
python .claude/scripts/analyze_errors.py --report

cat .claude/rules/error_rules.json | jq '.rules[] | {id, signature, count: .occurrence_count}'

pattern: ECONNREFUSED|connection refused|ERR_CONNECTION_REFUSED|connect ECONNREFUSED
fix: The port may have changed or the service isn't running.
     1. Check services: portless list (if installed)
     2. Use named URLs: api.localhost instead of localhost:PORT
     3. Fallback: lsof -iTCP -sTCP:LISTEN -nP | grep -E 'node|python|java'
     4. Install Portless to avoid port guessing: npm i -g portless

pattern: ERR_CONNECTION_RESET|ECONNRESET|socket hang up
fix: Service may have crashed. Check process logs, restart the service,
     and use agent-browser to verify the app is responding:
     agent-browser open "https://myapp.localhost"

pattern: role "X" does not exist
fix: Use Docker connection: docker exec -it orchestkit-postgres-dev psql -U orchestkit_user -d orchestkit_dev

pattern: relation "X" does not exist
fix: Check MCP postgres server connection string - may be connected to wrong database

pattern: hook.*error|hook.*failed|PreToolUse.*error
diagnosis: Read the stderr line shown in the transcript.
  1. If path error → check CLAUDE_PLUGIN_ROOT is set
  2. If JSON parse error → hook is returning invalid JSON
  3. If timeout → hook exceeds 50ms budget (PreToolUse) or 100ms (PostToolUse)
  4. If "module not found" → run: cd src/hooks && npm run build

{
  "id": "custom-001",
  "pattern": "your regex pattern",
  "signature": "human readable signature",
  "tool": "Bash",
  "occurrence_count": 1,
  "fix_suggestion": "How to fix this"
}

© yonatangross, MIT. 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 4 other files in src/skills/errors of yonatangross/orchestkit.

• SKILL.md
• rules/_sections.md
• rules/pattern-matching-accuracy.md
• rules/root-cause-before-fix.md
• test-cases.json

Open the folder on GitHubat commit 02bbf9a