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hamelsmu avatar

Error Analysis

hamelsmu/evals-skills
604 installs1.6k stars
Summary

This walks you through the unglamorous work of figuring out how your LLM system actually fails. You review about 100 traces, note what went wrong in each one, then group similar failures into 5-10 categories you can measure and fix. The process is deliberately manual at first because pre-defined failure lists cause confirmation bias. It pushes you to distinguish root causes (missing a filter in the SQL) from symptoms (wrong results downstream) and only build evaluators for failures that warrant the effort. Use it when starting evals, after big pipeline changes, or when production metrics tank and you need to know why.

Install to Claude Code

npx -y skills add hamelsmu/evals-skills --skill error-analysis --agent claude-code

Installs into .claude/skills of the current project.

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Plug Mailtrap into your AI workflow and let it handle the email.
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Your agent targets a perfect 10 Code Health score. Deterministic. Every commit.
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belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
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AI writes the code. CodeRabbit catches the slop.
Try For Free →
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create and run specialised agents in minutes
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Plug Mailtrap into your AI workflow and let it handle the email.
Connect Mailtrap MCP →
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Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →
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Make coding agent sessions - Searchable, Shareable, Vendor-neutral & Scored.
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CodeScene MCP ServerCodeScene MCP Server
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Your agent targets a perfect 10 Code Health score. Deterministic. Every commit.
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belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →
Files
SKILL.md

Select a file.

Featured
CodeRabbit
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AI writes the code. CodeRabbit catches the slop.
Try For Free →
inference shell
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create and run specialised agents in minutes
build now →
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Plug Mailtrap into your AI workflow and let it handle the email.
Connect Mailtrap MCP →
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Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →
Capacitor - Shared memory for your team’s coding agents.
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Make coding agent sessions - Searchable, Shareable, Vendor-neutral & Scored.
Try For Free →
CodeScene MCP ServerCodeScene MCP Server
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Your agent targets a perfect 10 Code Health score. Deterministic. Every commit.
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Get API Key Now →
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belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →
Categories
DevOps & CI/CDAI & Agent BuildingDebuggingAutomation & WorkflowsSales & Marketing
First SeenJun 3, 2026
View on GitHub

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