thoroughness

A working method for handling complex coding tasks, critical bugs, large refactors, and production changes with systematic analysis and verification.

In plain words
What is it for?
Use it to inventory issues, find root causes, make a dependency-aware plan, implement changes in order, and verify the result.
Why use it?
It reduces the chance of fixing only symptoms, skipping dependencies, or stopping before tests and other checks confirm the work is complete.

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/pr-pm/prpm/thoroughness
Any agent
npx skills add pr-pm/prpm --skill thoroughness
Clone the repo
git clone --depth 1 https://github.com/pr-pm/prpm

Made for: Claude Code, Codex.

Per session 40 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,023 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 $0.00040 $0.01023
Opus 5 $0.00020 $0.00511
Sonnet 5 $0.00008 $0.00205
Haiku 4.5 $0.00004 $0.00102

Measured 3d ago against content hash 431a3d830b5a, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

thoroughness 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 3d 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.

.claude/skills/thoroughness/SKILL.md · 144 lines

How it starts

The opening of the file, as written. The whole thing — 144 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Thoroughness

Purpose

This skill ensures comprehensive, complete implementation of complex tasks without shortcuts. Use this when quality and completeness matter more than speed.

When to Use

  • Fixing critical bugs or compilation errors
  • Implementing complex multi-step features
  • Debugging test failures
  • Refactoring large codebases
  • Production deployments
  • Any task where shortcuts could cause future problems

Methodology

Phase 1: Comprehensive Analysis (20% of time)

  1. Identify All Issues

    • List every error, warning, and failing test
    • Group related issues together
    • Prioritize by dependency order
    • Create issue hierarchy (what blocks what)
  2. Root Cause Analysis

    • Don't fix symptoms, find root causes
    • Trace errors to their source
    • Identify patterns in failures
    • Document assumptions that were wrong
  3. Create Detailed Plan

    • Break down into atomic steps
    • Estimate time for each step
    • Identify dependencies between steps
    • Plan verification for each step
    • Schedule breaks/checkpoints

Phase 2: Systematic Implementation (60% of time)

  1. Fix Issues in Dependency Order

    • Start with foundational issues
    • Fix one thing completely before moving on
    • Test after each fix
    • Document what was changed and why
  2. Verify Each Fix

    • Write/run tests for the specific fix
    • Check for side effects
    • Verify related functionality still works
    • Document test results
  3. Track Progress

    • Mark issues as completed
    • Update plan with new discoveries
    • Adjust time estimates
    • Note any blockers immediately

Phase 3: Comprehensive Verification (20% of time)

  1. Run All Tests

    • Unit tests
    • Integration tests
    • E2E tests
    • Manual verification
  2. Cross-Check Everything

    • Review all changed files
    • Verify compilation succeeds
    • Check for console errors/warnings
    • Test edge cases
  3. Documentation

    • Update relevant docs
    • Add inline comments for complex fixes
    • Document known limitations
    • Create issues for future work

Read the full file on GitHub · 144 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. 3d ago First seen · 144 lines · 40 tokens per session scan A 431a3d830b5a

Subscribe to this mod's changes

thoroughness is a skill published in the GitHub repository pr-pm/prpm (120 stars, last pushed 2mo ago), licensed MIT. It adds 40 tokens to every session and 1,023 once invoked, about $0.0002 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.