error-interpretation

error-interpretation is a skill for Claude Code, Codex from varunk130/ai-workflow-playbooks. It costs 21 tokens per session (1,467 once invoked), scanned A, original, MIT.

A method for diagnosing errors by carefully reading the full error message, stack trace, and logs before changing code.

In plain words
What is it for?
Investigating failed programs, interpreting error codes, locating the relevant file and line, forming a cause-based hypothesis, and checking that hypothesis.
Why use it?
It reduces guesswork and prevents trying unrelated fixes. The method helps connect an error to its type, location, and likely cause.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

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/varunk130/ai-workflow-playbooks/error-interpretation
Any agent
npx skills add varunk130/ai-workflow-playbooks --skill error-interpretation
Clone the repo
git clone --depth 1 https://github.com/varunk130/ai-workflow-playbooks

Made for: Claude Code, Codex.

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 error-interpretation

README.md
[![agentmods](https://agentmods.dev/badge/skills/varunk130/ai-workflow-playbooks/error-interpretation.svg)](https://agentmods.dev/skills/varunk130/ai-workflow-playbooks/error-interpretation)
Your own site
<a href="https://agentmods.dev/skills/varunk130/ai-workflow-playbooks/error-interpretation"><img src="https://agentmods.dev/badge/skills/varunk130/ai-workflow-playbooks/error-interpretation.svg" alt="Measured on agentmods" height="20"></a>
Per session 21 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,467 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 5.1 $0.00021 $0.01467
Opus 5 $0.00010 $0.00733
Sonnet 5 $0.00004 $0.00293
Haiku 4.5 $0.00002 $0.00147

Measured 5d ago against content hash af4e02b4f570, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

error-interpretation 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 5d 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/error-interpretation/SKILL.md · 107 lines

How it starts

The opening of the file, as written. The whole thing — 107 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Error Interpretation

What This Skill Enables

Agents with this skill can diagnose failures methodically by reading what the system is actually telling them. Without it, agents fall into shotgun debugging -- trying random fixes, changing multiple things at once, and hoping something sticks. A skilled agent reads the error, forms a hypothesis, and verifies it before writing a single line of corrective code.

Core Competencies

1. Read the Actual Error Message First

This sounds obvious but is the most commonly skipped step. Before doing anything:

  1. Copy the full error output, not just the first line.
  2. Identify the error type or code (e.g., TypeError, ECONNREFUSED, HTTP 403, exit code 137).
  3. Identify the error message (the human-readable explanation after the type).
  4. Note any file path and line number referenced.
# Example: Don't just see "TypeError". Read the whole thing.

TypeError: Cannot read properties of undefined (reading 'map')
    at renderList (src/components/UserList.tsx:14:22)
    at processChild (node_modules/react-dom/cjs/react-dom.development.js:1234:12)

# What to extract:
#   Type:    TypeError
#   Message: Cannot read properties of undefined (reading 'map')
#   Where:   src/components/UserList.tsx, line 14, column 22
#   What:    Something is undefined when .map() is called on it

2. Parse Stack Traces Correctly

Stack traces list frames from most recent call to oldest. Your job is to find the boundary between your code and framework/library code.

Frame Type How to Identify What to Do
Your code File path is in src/, app/, lib/, or your project directories. This is where the bug lives. Start here.
Framework code Path is in node_modules/, standard library, or runtime internals. Usually not the bug. Tells you what the framework was doing when your code failed.
Generated code Path references .next/, dist/, build/, __pycache__/. Map back to the source file. Don't edit generated code.

Read the full file on GitHub · 107 lines

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. 5d ago First seen · 107 lines · 21 tokens per session scan A af4e02b4f570

Subscribe to this mod's changes

error-interpretation is a skill published in the GitHub repository varunk130/ai-workflow-playbooks (2 stars, last pushed 1mo ago), licensed MIT. It adds 21 tokens to every session and 1,467 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 2026-08-31.

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