Tracely-ai: Skill for Claude Code

.claude/skills/papercuts/SKILL.md

papercuts is a skill for Claude Code, Codex from Jwuthri/Tracely-ai. It costs 115 tokens per session (949 once invoked), scanned A, a copy of papercuts, MIT.

A repository note for recording recurring problems that another contributor could reproduce and that the project could fix.

In plain words
What is it for?
Use it to record confusing setup steps, flaky repository commands, misleading errors, stale generated files, and other fixable gotchas. It can also help review, combine, and resolve existing notes.
Why use it?
It keeps small but repeated sources of wasted time from being forgotten, while filtering out personal environment failures and one-off mistakes.

Skill for Claude CodeCodex

Written for Claude Code and Codex: installed under .claude/, but also agents/openai.yaml present. Also seen: mentions Codex.

This is Jwuthri/Tracely-ai's own configuration. It tells Claude Code and Codex how to work on Tracely-ai itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything Tracely-ai configures →

About the project

Tracely is a CI/CD system for AI agents that turns failed production traces into replayable regression tests. Development teams use it to detect and group agent failures, run the resulting cases on pull requests, and block changes that reproduce those failures. The catalogue entries provide skills for operating this trace-based testing and observability workflow.

Jwuthri/Tracely-ai · 1,216 stars · on GitHub · tracely-ai.com

Reuse

Borrowing it

Nothing to install: this file belongs to Jwuthri/Tracely-ai. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/Jwuthri/Tracely-ai/master/.claude/skills/papercuts/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/Jwuthri/Tracely-ai

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 papercuts

README.md
[![agentmods](https://agentmods.dev/badge/skills/jwuthri/tracely-ai/papercuts/github.svg)](https://agentmods.dev/skills/jwuthri/tracely-ai/papercuts)
Your own site
<a href="https://agentmods.dev/skills/jwuthri/tracely-ai/papercuts"><img src="https://agentmods.dev/badge/skills/jwuthri/tracely-ai/papercuts/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for papercuts

Your own site · 80×15
<a href="https://agentmods.dev/skills/jwuthri/tracely-ai/papercuts"><img src="https://agentmods.dev/badge/skills/jwuthri/tracely-ai/papercuts.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 115 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 949 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 100% copy Near-identical to another mod 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 $0.00115 $0.00949
Opus 5 $0.00057 $0.00475
Sonnet 5 $0.00023 $0.00190
Haiku 4.5 $0.00012 $0.00095

Measured 9d ago against content hash 9cabafbd45f1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

papercuts 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 9d 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.

Origin

This is a copy

100% identical to papercuts — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.claude/skills/papercuts/SKILL.md · 82 lines

How it starts

The opening of the file, as written. The whole thing — 82 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Papercuts

Capture small friction in the moment without derailing the current task. Aggregated entries show where the repository needs sanding down — so the bar is that a different contributor would hit the same thing, and the repository can do something about it.

The two-question test

Log it only if both are true:

  1. Reproducible for anyone. A different person, on a fresh checkout, working in this repo would hit the same friction. It is not specific to your sandbox, shell config, machine, network, or a one-time hiccup.
  2. Fixable in the repo. A change to the repo's code, config, scripts, or docs would prevent or reduce it.

If either answer is "no," push through it and move on — do not log it.

Do NOT log

  • Your environment's failures. Sandbox EPERM / listen / IPC-socket errors, blocked network or fetch failed, permission denials, missing system tools. That is the runner, not the repo.
  • Your own shell mistakes. Reserved or special variable names (status, path), unquoted globs, a broken login-shell hook. Fix the command — there is nothing in the repo to sand down.
  • Transient flakiness. A command that succeeded on retry with no repo-side cause (a network blip, a hung push, a slow mirror).
  • Local state you corrupted. A partial node_modules after branch-switching, a stale dev-server port, a dirty cache. Re-run the install or cleanup.
  • Third-party or beta-tool limitations the repo can't change — unless the fix is a repo-side workaround worth writing down (then log that workaround).
  • Product or code correctness bugs (fix now or track as real work), and what you accomplished (that belongs in the task summary).
  • Secrets, credentials, personal data, raw customer payloads, or sensitive paths.

When something fails, first ask "is this the repo, or is this me/my environment?" Only the former is a papercut.

Log proactively

  1. Search .agents/PAPERCUTS.md for an equivalent entry and avoid duplicates.
  2. Append one unchecked item under ## Open using this format:

Read the full file on GitHub · 82 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 9d ago First seen · 82 lines · 115 tokens per session scan A 9cabafbd45f1

Subscribe to this mod's changes

papercuts is a skill published in the GitHub repository Jwuthri/Tracely-ai (1,216 stars, last pushed yesterday), licensed MIT. It adds 115 tokens to every session and 949 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to papercuts, differing in 0 lines, and is treated as a copy.

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