butgo-specdrive-lab: Skill for Claude Code

.agents/skills/session/SKILL.md

session is a skill for Claude Code, Codex from butgo/butgo-specdrive-lab. It costs 36 tokens per session (488 once invoked), scanned A, original, MIT.

A command-line entry point for managing specdrive work sessions, which are saved working states for a project.

In plain words
What is it for?
Use it to start a lightweight or full session, check its status, or save the current session.
Why use it?
It gives session actions a consistent route, so users do not need to remember separate commands for starting, checking, or saving a session.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

This is butgo/butgo-specdrive-lab's own configuration. It tells Claude Code and Codex how to work on butgo-specdrive-lab 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 butgo-specdrive-lab configures →

Reuse

Borrowing it

Nothing to install: this file belongs to butgo/butgo-specdrive-lab. 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/butgo/butgo-specdrive-lab/main/.agents/skills/session/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/butgo/butgo-specdrive-lab

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 session

README.md
[![agentmods](https://agentmods.dev/badge/skills/butgo/butgo-specdrive-lab/session.svg)](https://agentmods.dev/skills/butgo/butgo-specdrive-lab/session)
Your own site
<a href="https://agentmods.dev/skills/butgo/butgo-specdrive-lab/session"><img src="https://agentmods.dev/badge/skills/butgo/butgo-specdrive-lab/session.svg" alt="Measured on agentmods" height="20"></a>
Per session 36 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 488 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 $0.00036 $0.00488
Opus 5 $0.00018 $0.00244
Sonnet 5 $0.00007 $0.00098
Haiku 4.5 $0.00004 $0.00049

Measured 7d ago against content hash 49e018f2684f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

session 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 7d 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.

.agents/skills/session/SKILL.md · 84 lines

What it actually says

Session

Use this skill as the argument-based entry point for specdrive session work.

Invocation Rule

If the user's message is exactly $session, treat it as a no-action router call. Do not wait for another message or ask a follow-up question. Immediately print the no-action output below and stop.

Supported actions:

  • start-lite
  • start
  • status
  • save

Aliases:

  • lite -> start-lite
  • start-lite -> start-lite
  • start -> start
  • status -> status
  • save -> save

If the user provided $session without an action, or provided no recognizable action, list the action choices and stop.

Dispatch

Follow the matching repo-local session action instructions:

  • start-lite: .agents/skills/session/actions/start-lite.md
  • start: .agents/skills/session/actions/start.md
  • status: .agents/skills/session/actions/status.md
  • save: .agents/skills/session/actions/save.md

Do not combine actions in one response unless the user explicitly asks.

Output: No Action

Reply with:

  1. available actions
  2. short descriptions
  3. copy-ready examples

Use this concrete shape:

사용 가능한 $session action:

- start-lite: docs/AI_CONTEXT.md 기준으로 최소 세션 복구를 합니다.
- start: 전체 세션 복구용 copy prompt를 준비합니다.
- status: 현재 세션 상태를 짧게 확인합니다.
- save: 세션 저장용 AI_CONTEXT 반영 초안을 준비합니다.

예시:
$session start-lite
$session start
$session status
$session save

Examples:

$session start-lite
$session start
$session status
$session save

Boundaries

  • Session work is meta operation work.
  • Do not perform doc, dev, or git work through this skill.
  • Do not edit files unless the dispatched action explicitly allows it and the user approves.
  • Do not inspect docs/history/** unless the user explicitly asks for history lookup.
Files

What ships with it

4 files 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. 7d ago First seen · 84 lines · 36 tokens per session scan A 49e018f2684f

Subscribe to this mod's changes

session is a skill published in the GitHub repository butgo/butgo-specdrive-lab (1 stars, last pushed 4mo ago), licensed MIT. It adds 36 tokens to every session and 488 once invoked, about $0.0002 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.

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