spec-research

spec-research is a skill for Claude Code, Codex from eve0415/cella. It costs 113 tokens per session (979 once invoked), scanned A, original, GPL-3.0.

A research guide for understanding the development-container specification, its official command-line tool, and its Visual Studio Code extension.

In plain words
What is it for?
Planning or fixing development-container commands, options, lifecycle hooks, and features when their behaviour is unclear.
Why use it?
It reduces the risk of designing commands or behaviours that conflict with the documented standard or existing tools.

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/eve0415/cella/spec-research
Any agent
npx skills add eve0415/cella --skill spec-research
Clone the repo
git clone --depth 1 https://github.com/eve0415/cella

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 spec-research

README.md
[![agentmods](https://agentmods.dev/badge/skills/eve0415/cella/spec-research.svg)](https://agentmods.dev/skills/eve0415/cella/spec-research)
Your own site
<a href="https://agentmods.dev/skills/eve0415/cella/spec-research"><img src="https://agentmods.dev/badge/skills/eve0415/cella/spec-research.svg" alt="Measured on agentmods" height="20"></a>
Per session 113 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 979 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00113 $0.00979
Opus 5 $0.00056 $0.00490
Sonnet 5 $0.00023 $0.00196
Haiku 4.5 $0.00011 $0.00098

Measured 5d ago against content hash c0d76cdaaf32, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

spec-research 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 5d 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.

.claude/skills/spec-research/SKILL.md · 119 lines

The source is not reproduced here

Licensed GPL-3.0

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

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. 5d ago First seen · 119 lines · 113 tokens per session scan A c0d76cdaaf32

Subscribe to this mod's changes

spec-research is a skill published in the GitHub repository eve0415/cella (4 stars, last pushed 19d ago), licensed GPL-3.0. It adds 113 tokens to every session and 979 once invoked, about $0.0006 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 2026-08-31.