dynamo: Skill for Claude Code

.agents/skills/debug-session/SKILL.md

debug-session is a skill for Claude Code, Codex from ai-dynamo/dynamo. It costs 75 tokens per session (1,220 once invoked), scanned A, original, no licence file.

A structured debugging workflow for a Dynamo bug, starting from a Linear ticket, GitHub issue, or pasted report and keeping investigation notes in a worklog markdown file.

In plain words
What is it for?
Use it when beginning to investigate a reported bug and working through reproduction and diagnosis.
Why use it?
It keeps the environment details, reproduction steps, rebuilds, and investigation findings in one persistent record.

Skill for Claude CodeCodex

Written for Claude Code: disable-model-invocation in frontmatter. Also seen: installed under .agents/ (shared by several agents).

This is ai-dynamo/dynamo's own configuration. It tells Claude Code and Codex how to work on dynamo 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 dynamo configures →

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is cd lib/bindings/python && maturin develop --uv && cd ../../.. && uv pip install -e ..

Reuse

Borrowing it

Nothing to install: this file belongs to ai-dynamo/dynamo. 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/ai-dynamo/dynamo/main/.agents/skills/debug-session/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/ai-dynamo/dynamo

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 debug-session

README.md
[![agentmods](https://agentmods.dev/badge/skills/ai-dynamo/dynamo/debug-session/github.svg)](https://agentmods.dev/skills/ai-dynamo/dynamo/debug-session)
Your own site
<a href="https://agentmods.dev/skills/ai-dynamo/dynamo/debug-session"><img src="https://agentmods.dev/badge/skills/ai-dynamo/dynamo/debug-session/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 debug-session

Your own site · 80×15
<a href="https://agentmods.dev/skills/ai-dynamo/dynamo/debug-session"><img src="https://agentmods.dev/badge/skills/ai-dynamo/dynamo/debug-session.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 75 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,220 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 2 findings, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Rogue Agent · line 60
    Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.
    Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
  • medium Data Exfiltration · line 126
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
How audits are shown
Origin unknown 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 $0.00075 $0.01220
Opus 5.5 $0.00030 $0.00488
Sonnet 5.5 $0.00015 $0.00244
Haiku 4.5 $0.00007 $0.00122

Measured 2mo ago against content hash afc053b25688, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

debug-session scanned grade A with 1 finding 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 2mo 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl localhost:8000/v1/models
.agents/skills/debug-session/SKILL.md · 175 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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. 2mo ago First seen · 175 lines · 75 tokens per session scan A afc053b25688

Subscribe to this mod's changes

debug-session is a skill published in the GitHub repository ai-dynamo/dynamo (8,412 stars, last pushed today), with no licence file. It adds 75 tokens to every session and 1,220 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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