capabilities

capabilities is a skill for Claude Code, Codex from refactornator/nanoflash. It costs 42 tokens per session (669 once invoked), scanned A, original, MIT.

A read-only report of the NanoFlash agent's built-in tools, optional tools, and system information. NanoFlash is the agent environment this report describes.

In plain words
What is it for?
Use it with `/capabilities` to inspect available shell, file, web, scheduling, and other tool access.
Why use it?
It shows what the current instance can actually do before you ask it to perform a task.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions CLAUDE.md.

Good fit Use it with /capabilities to inspect available shell, file, web, scheduling, and other tool access.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/refactornator/nanoflash/capabilities
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 refactornator/nanoflash --skill capabilities
Clone the repo
git clone --depth 1 https://github.com/refactornator/nanoflash

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 capabilities

README.md
[![agentmods](https://agentmods.dev/badge/skills/refactornator/nanoflash/capabilities/github.svg)](https://agentmods.dev/skills/refactornator/nanoflash/capabilities)
Your own site
<a href="https://agentmods.dev/skills/refactornator/nanoflash/capabilities"><img src="https://agentmods.dev/badge/skills/refactornator/nanoflash/capabilities/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 capabilities

Your own site · 80×15
<a href="https://agentmods.dev/skills/refactornator/nanoflash/capabilities"><img src="https://agentmods.dev/badge/skills/refactornator/nanoflash/capabilities.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 42 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 669 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 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 $0.00042 $0.00669
Opus 5.5 $0.00017 $0.00268
Sonnet 5.5 $0.00008 $0.00134
Haiku 4.5 $0.00004 $0.00067

Measured 1mo ago against content hash 80df29f45563, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

capabilities 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 1mo 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.

container/skills/capabilities/SKILL.md · 86 lines

How it starts

The opening of the file, as written. The whole thing — 86 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/capabilities — System Capabilities Report

Generate a structured read-only report of what this NanoFlash instance can do.

Main-channel check: Only the main channel has /workspace/project mounted. Run:

test -d /workspace/project && echo "MAIN" || echo "NOT_MAIN"

If NOT_MAIN, respond with:

This command is available in your main chat only. Send /capabilities there to see what I can do.

Then stop — do not generate the report.

How to gather the information

Run these commands and compile the results into the report format below.

1. Built-in Gemini agent tools

NanoFlash always has these tools available (implemented as Gemini function declarations):

  • bash — run shell commands in your sandbox (timeout 120s)
  • read_file — read files from the workspace
  • write_file — write files to the workspace
  • list_directory — list directory contents
  • send_message — send a message to the user immediately while still working
  • web_fetch — fetch a URL and return the content (timeout 30s, 50KB cap)
  • schedule_task — schedule a recurring or one-time task

2. Optional container tools (bash executables)

Check what optional tools are installed:

which agent-browser 2>/dev/null && echo "agent-browser: available" || echo "agent-browser: not found"

3. Model info

echo "Primary model: ${GEMINI_PRIMARY_MODEL:-gemini-2.5-pro-latest}"
echo "Fast model: ${GEMINI_FAST_MODEL:-gemini-2.0-flash}"

4. Group info

test -f /workspace/group/CLAUDE.md && echo "Group memory: yes" || echo "Group memory: no"
test -d /workspace/extra && echo "Extra mounts: $(ls /workspace/extra/ 2>/dev/null | wc -l | tr -d ' ')" || echo "Extra mounts: none"

Report format

Present the report as a clean, readable message. Example:

📋 *NanoFlash Capabilities*

*Agent:* Gemini (gemini-2.5-pro-latest)

*Built-in Tools:*
• bash — run shell commands in sandbox
• read_file / write_file / list_directory — file I/O
• send_message — send progress updates
• web_fetch — fetch URLs (50KB cap)
• schedule_task — schedule recurring or one-time tasks

*Optional Tools:*
• agent-browser: ✓ (or ✗)

*System:*
• Group memory: yes/no
• Extra mounts: N directories
• Main channel: yes/no

Read the full file on GitHub · 86 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. 1mo ago First seen · 86 lines · 42 tokens per session scan A 80df29f45563

Subscribe to this mod's changes

capabilities is a skill published in the GitHub repository refactornator/nanoflash (5 stars, last pushed 6mo ago), licensed MIT. It adds 42 tokens to every session and 669 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-08-31.

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