war-room-checkpoint

war-room-checkpoint is a skill for Claude Code from athola/claude-night-market. It costs 30 tokens per session (2,719 once invoked), scanned A, original, MIT.

A checkpoint that evaluates whether an important technical decision is easy or costly to reverse. It can recommend a quick decision or escalation for deeper review.

In plain words
What is it for?
Use it in issue work, pull-request reviews, architecture reviews, or fixes when there are conflicts, major scope changes, or boundary violations.
Why use it?
It helps teams slow down when a choice could affect many files, create long-term lock-in, or be difficult to undo.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter; reads .claude/ paths.

Part of the attune plugin — 14 skills, 11 commands, 2 agents shipped together

Good fit Use it in issue work, pull-request reviews, architecture reviews, or fixes when there are conflicts, major scope changes, or boundary violations.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/athola/claude-night-market/war-room-checkpoint
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 athola/claude-night-market --skill war-room-checkpoint
Clone the repo
git clone --depth 1 https://github.com/athola/claude-night-market

Made for: Claude Code.

Or install attune, the plugin that ships this one along with the rest of its 14 skills, 11 commands, 2 agents.

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 war-room-checkpoint

README.md
[![agentmods](https://agentmods.dev/badge/skills/athola/claude-night-market/war-room-checkpoint/github.svg)](https://agentmods.dev/skills/athola/claude-night-market/war-room-checkpoint)
Your own site
<a href="https://agentmods.dev/skills/athola/claude-night-market/war-room-checkpoint"><img src="https://agentmods.dev/badge/skills/athola/claude-night-market/war-room-checkpoint/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 war-room-checkpoint

Your own site · 80×15
<a href="https://agentmods.dev/skills/athola/claude-night-market/war-room-checkpoint"><img src="https://agentmods.dev/badge/skills/athola/claude-night-market/war-room-checkpoint.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 30 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,719 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

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 →

  • medium Excessive Agency · line 6
    Skill selects an external model or provider that may use a different account or billing plan than the operator expects. Undisclosed model switches can cause unexpected cost or quota consumption.
    Fix: Remove the model/provider override or disclose it prominently and require explicit operator approval before invoking an external coding CLI or billed model.
How audits are shown
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 $0.00030 $0.02719
Opus 5 $0.00015 $0.01359
Sonnet 5 $0.00006 $0.00544
Haiku 4.5 $0.00003 $0.00272

Measured 9d ago against content hash 9384dcdba08e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

war-room-checkpoint 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 9d 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.

plugins/attune/skills/war-room-checkpoint/SKILL.md · 354 lines

How it starts

The opening of the file, as written. The whole thing — 354 lines — stays where its author put it; the contents beside it link to each section on GitHub.

War Room Checkpoint Skill

Lightweight inline assessment for determining whether a decision point within a command warrants War Room escalation.

Table of Contents

  1. Purpose
  2. When Commands Should Invoke This
  3. Invocation Pattern
  4. Checkpoint Flow
  5. Confidence Calculation
  6. Profile Thresholds
  7. Output Format
  8. Examples

Verification

Run make attune-test from the repository root to verify checkpoint logic still works after changes.

Purpose

This skill is not invoked directly by users. It is called by other commands (e.g., /do-issue, /pr-review) at critical decision points to:

  1. Calculate Reversibility Score (RS) for the current context
  2. Determine if full War Room deliberation is needed
  3. Return either a quick recommendation (express) or escalate to full War Room

When Commands Should Invoke This

Command Trigger Conditions
/do-issue 3+ issues, dependency conflicts, overlapping files
/pr-review >3 blocking issues, architecture changes, ADR violations
/architecture-review ADR violations, high coupling, boundary violations
/fix-pr Major scope, conflicting reviewer feedback

When NOT To Use

Situation Use instead
A user asks for deliberation directly Skill(attune:war-room)
The decision is cheap to reverse (high RS) Proceed without a checkpoint
A panel already ruled on this decision The prior verdict

This skill decides whether deliberation is warranted and returns fast when it is not. A command that checkpoints every decision pays the scoring cost to be told to proceed almost every time, and re-checkpointing a settled call re-litigates it.

Invocation Pattern

Skill(attune:war-room-checkpoint) with context:
  - source_command: "{calling_command}"
  - decision_needed: "{human_readable_question}"
  - files_affected: [{list_of_files}]
  - issues_involved: [{issue_numbers}] (if applicable)
  - blocking_items: [{type, description}] (if applicable)
  - conflict_description: "{summary}" (if applicable)
  - profile: "default" | "startup" | "regulated" | "fast" | "cautious"

Read the full file on GitHub · 354 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. 9d ago First seen · 354 lines · 30 tokens per session scan A 9384dcdba08e

Subscribe to this mod's changes

war-room-checkpoint is a skill published in the GitHub repository athola/claude-night-market (337 stars, last pushed 2d ago), licensed MIT. It adds 30 tokens to every session and 2,719 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 2026-09-03.

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