neo-debug

neo-debug is a skill for Claude Code from Parslee-ai/neo. It costs 62 tokens per session (949 once invoked), scanned A, original, Apache-2.0.

A debugging assistant for intermittent, complex, or difficult-to-reproduce software problems. These include race conditions, memory problems, and bugs spread across distributed systems.

In plain words
What is it for?
Use it with a detailed symptom, environment, reproduction information, logs, stack traces, or implicated code.
Why use it?
It helps investigate cases where the visible symptom may not be the underlying cause, without spending it on simple errors or obvious single-file failures.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: mentions Codex; $skill-name invocation.

Part of the neo plugin — 9 skills, 18 commands, 1 agent, 1 hook shipped together

Good fit Use it with a detailed symptom, environment, reproduction information, logs, stack traces, or implicated code.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/parslee-ai/neo/neo-debug
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.

Any agent
npx skills add Parslee-ai/neo --skill neo-debug
Clone the repo
git clone --depth 1 https://github.com/Parslee-ai/neo

Made for: Claude Code.

Or install neo, the plugin that ships this one along with the rest of its 9 skills, 18 commands, 1 agent, 1 hook.

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 neo-debug

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/parslee-ai/neo/neo-debug"><img src="https://agentmods.dev/badge/skills/parslee-ai/neo/neo-debug.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 62 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00062 $0.00949
Opus 5 $0.00031 $0.00475
Sonnet 5 $0.00012 $0.00190
Haiku 4.5 $0.00006 $0.00095

Measured 9d ago against content hash 73cbd40cf62c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

neo-debug 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.

plugins/neo/skills/neo-debug/SKILL.md · 80 lines

How it starts

The opening of the file, as written. The whole thing — 80 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Neo Debug Assistant

When the user invokes this skill ($neo-debug <bug description>), do the following:

  1. Capture the bug context tightly. Symptom, when it started, frequency, environment, and any reproduction steps. Vague bug reports get vague answers; Neo's memory is keyed on specifics.

  2. Gather observable evidence. Recent error logs, stack traces, test failures. Read the file(s) implicated by the stack trace. If the user mentioned a specific function, locate it.

  3. Apply the provider boundary. Redact secrets, credentials, tokens, cookies, session material, and unrelated log records. Before an external-provider call, tell the user which Neo provider will receive which files or data categories. Production, private, or customer diagnostics require explicit authorization for that provider and scope.

  4. Invoke Neo with a debug-framed prompt. Allow up to 5 minutes. Use Codex's approval flow for required network access, naming the provider and summarized data in the approval description.

    neo --json --no-scan --no-memory --mode advise <<'QUERY'
    Debug this issue: <user's description>
    
    Symptoms: <what happens>
    Environment: <relevant context — concurrency model, OS, runtime, dependencies>
    Stack trace / logs:
    <paste evidence>
    
    Relevant code:
    <paste the function or module under suspicion>
    
    Provide ranked hypotheses about root cause with reasoning. For each, suggest a verification step.
    QUERY
    
  5. Present Neo's hypotheses ranked by confidence. Lead with the verification step the user can take next — debugging is an iterative loop, not a one-shot answer.

  6. If Neo returns multiple competing hypotheses, surface them all. Don't collapse to "the most likely one" — concurrent-systems bugs often have multiple contributing causes.

--no-scan is mandatory: Codex already selected the evidence, so Neo must not silently add working-directory files to the provider request. --no-memory is the default so unrelated stored facts cannot enter the provider prompt. Omit it only when the user explicitly authorizes relevant Neo memory; include stored facts as a disclosed data category.

Read the full file on GitHub · 80 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. 9d ago First seen · 80 lines · 62 tokens per session scan A 73cbd40cf62c

Subscribe to this mod's changes

neo-debug is a skill published in the GitHub repository Parslee-ai/neo (16 stars, last pushed yesterday), licensed Apache-2.0. It adds 62 tokens to every session and 949 once invoked, about $0.0003 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.

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