taOS: Skill for Claude Code

.claude/skills/taos-development-skill/SKILL.md

taos-development-skill is a skill for Claude Code from jaylfc/taOS. It costs 43 tokens per session (12,878 once invoked), scanned A, original, AGPL-3.0.

A skill containing procedures and architecture guidance for contributing to taOS. Its core rules are kept in a separate soul.md file.

In plain words
What is it for?
Use it when contributing code to taOS and when you need to follow its architecture or non-negotiable project rules.
Why use it?
It gives an AI coding agent the project-specific process and design context needed to make changes consistently.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is jaylfc/taOS's own configuration. It tells Claude Code how to work on taOS 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 taOS configures →

Reuse

Borrowing it

Nothing to install: this file belongs to jaylfc/taOS. 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/jaylfc/taOS/master/.claude/skills/taos-development-skill/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/jaylfc/taOS

Made for: Claude Code.

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 taos-development-skill

README.md
[![agentmods](https://agentmods.dev/badge/skills/jaylfc/taos/taos-development-skill/github.svg)](https://agentmods.dev/skills/jaylfc/taos/taos-development-skill)
Your own site
<a href="https://agentmods.dev/skills/jaylfc/taos/taos-development-skill"><img src="https://agentmods.dev/badge/skills/jaylfc/taos/taos-development-skill/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 taos-development-skill

Your own site · 80×15
<a href="https://agentmods.dev/skills/jaylfc/taos/taos-development-skill"><img src="https://agentmods.dev/badge/skills/jaylfc/taos/taos-development-skill.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 43 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 12,878 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: 5 findings, up to high

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 →

  • high Tool Misuse · line 78
    Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).
    Fix: Validate all tool parameters against an allowlist. Reject dangerous parameter values (shell=True, --force, -rf /) and use safe defaults.
  • high Privilege Escalation · line 529
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 533
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • medium Excessive Agency · line 95
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
  • medium Rogue Agent · line 589
    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.
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 $0.00043 $0.12878
Opus 5.5 $0.00017 $0.05151
Sonnet 5.5 $0.00009 $0.02576
Haiku 4.5 $0.00004 $0.01288

Measured 1mo ago against content hash c0c257a13375, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

taos-development-skill 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 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.

Makes network callslowCapability

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

Seed that session under the **browser's** user-agent, not curl's. `auth.py:1011`
.claude/skills/taos-development-skill/SKILL.md · 866 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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. 1mo ago Changed · -19 lines c0c257a13375
  2. 1mo ago Changed · +32 lines 3001b1500e85
  3. 1mo ago Changed · +66 lines ba002e7a5825
  4. 1mo ago Changed · +123 lines ef34fb3588c0
  5. 2mo ago First seen · 664 lines · 43 tokens per session scan A 5e40838b0fc4

Subscribe to this mod's changes

taos-development-skill is a skill published in the GitHub repository jaylfc/taOS (603 stars, last pushed yesterday), licensed AGPL-3.0. It adds 43 tokens to every session and 12,878 once invoked, about $0.0002 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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