debug

A troubleshooting guide for NanoClaw's container-based agent system. It covers the host machine, the isolated container, shared folders, logs, and configuration values.

In plain words
What is it for?
Use it to inspect logs and mounts, diagnose authentication and execution problems, and understand how files and sessions move between the host and container.
Why use it?
It helps locate failures caused by container startup, authentication, environment variables, file mounts, or session storage.

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

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 2,933 The whole file, excluding the scripts and references it only reads on demand.
Security scan D 2 findings. Scan, not verified.
Origin 92% 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 $0.00040 $0.02933
Opus 5 $0.00020 $0.01466
Sonnet 5 $0.00008 $0.00587
Haiku 4.5 $0.00004 $0.00293

Measured yesterday against content hash d774a2bc45d6, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade D, and why

debug scanned grade D with 2 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 yesterday.

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.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

--dangerously-skip-permissions cannot be used with root/sudo privileges

Recursive force deletehighDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

rm -rf data/sessions/
Origin

This is a copy

92% identical to debug — 32 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/debug/SKILL.md · 350 lines

How it starts

The opening of the file, as written. The whole thing — 350 lines — stays where its author put it; the contents beside it link to each section on GitHub.

NanoClaw Container Debugging

This guide covers debugging the containerized agent execution system.

Architecture Overview

Host (macOS)                          Container (Linux VM)
─────────────────────────────────────────────────────────────
src/container-runner.ts               container/agent-runner/
    │                                      │
    │ spawns container                      │ runs Claude Agent SDK
    │ with volume mounts                   │ with MCP servers
    │                                      │
    ├── data/env/env ──────────────> /workspace/env-dir/env
    ├── groups/{folder} ───────────> /workspace/group
    ├── data/ipc/{folder} ────────> /workspace/ipc
    ├── data/sessions/{folder}/.claude/ ──> /home/node/.claude/ (isolated per-group)
    └── (main only) project root ──> /workspace/project

Important: The container runs as user node with HOME=/home/node. Session files must be mounted to /home/node/.claude/ (not /root/.claude/) for session resumption to work.

Log Locations

Log Location Content
Main app logs logs/nanoclaw.log Host-side WhatsApp, routing, container spawning
Main app errors logs/nanoclaw.error.log Host-side errors
Container run logs groups/{folder}/logs/container-*.log Per-run: input, mounts, stderr, stdout
Claude sessions ~/.claude/projects/ Claude Code session history

Enabling Debug Logging

Set LOG_LEVEL=debug for verbose output:

# For development
LOG_LEVEL=debug npm run dev

# For launchd service (macOS), add to plist EnvironmentVariables:
<key>LOG_LEVEL</key>
<string>debug</string>
# For systemd service (Linux), add to unit [Service] section:
# Environment=LOG_LEVEL=debug

Debug level shows:

  • Full mount configurations
  • Container command arguments
  • Real-time container stderr

Common Issues

1. "Claude Code process exited with code 1"

Check the container log file in groups/{folder}/logs/container-*.log

Read the full file on GitHub · 350 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. yesterday First seen · 350 lines · 40 tokens per session scan D d774a2bc45d6

Subscribe to this mod's changes

debug is a skill published in the GitHub repository refactornator/nanoflash (5 stars, last pushed 4mo ago), licensed MIT. It adds 40 tokens to every session and 2,933 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it D with 2 findings (asks for root, recursive force delete). It is 92% identical to debug, differing in 32 lines, and is treated as a copy.

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