chamber: Skill for Claude Code

.github/skills/issue-slate/SKILL.md

issue-slate is a skill for Claude Code, Codex from ianphil/chamber. It costs 76 tokens per session (3,182 once invoked), scanned A, original, MIT.

A workflow for handling a group of GitHub issues together. It sorts the issues, groups related work into small pull requests, creates a roadmap, and guides implementation using TDD, meaning tests are written before or alongside the code.

In plain words
What is it for?
Use it to process issues by label, priority, milestone, or an explicit list, then plan and execute stacked pull requests in the specified repository.
Why use it?
It turns a large issue list into smaller, reviewable pieces of work. It also keeps triage, planning, testing, implementation, and delivery organized across several changes.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

This is ianphil/chamber's own configuration. It tells Claude Code and Codex how to work on chamber 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 chamber configures →

Reuse

Borrowing it

Nothing to install: this file belongs to ianphil/chamber. 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/ianphil/chamber/master/.github/skills/issue-slate/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/ianphil/chamber

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 issue-slate

README.md
[![agentmods](https://agentmods.dev/badge/skills/ianphil/chamber/issue-slate/github.svg)](https://agentmods.dev/skills/ianphil/chamber/issue-slate)
Your own site
<a href="https://agentmods.dev/skills/ianphil/chamber/issue-slate"><img src="https://agentmods.dev/badge/skills/ianphil/chamber/issue-slate/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 issue-slate

Your own site · 80×15
<a href="https://agentmods.dev/skills/ianphil/chamber/issue-slate"><img src="https://agentmods.dev/badge/skills/ianphil/chamber/issue-slate.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 76 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,182 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 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 300
    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.
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 $0.00076 $0.03182
Opus 5.5 $0.00030 $0.01273
Sonnet 5.5 $0.00015 $0.00636
Haiku 4.5 $0.00008 $0.00318

Measured 2mo ago against content hash 86bef376bdc7, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

issue-slate 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 2mo 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.

.github/skills/issue-slate/SKILL.md · 340 lines

How it starts

The opening of the file, as written. The whole thing — 340 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Issue Slate Skill

Drive a labeled or explicitly supplied GitHub issue slate from triage through reviewable PRs.

This skill coordinates the Chamber ship skill. Use gh for all GitHub operations. Never use MCP. The default base branch is master, and the default repository is ianphil/chamber.

When to use

Use this skill when the user asks to:

  1. Work through all issues with a label such as now, next, or later.
  2. Turn a set of GitHub issues into an execution plan.
  3. Create several PRs from an issue batch.
  4. Run the Chamber loop of plan -> do -> ship repeatedly.
  5. Generalize, replay, or continue a prior issue-slate workflow.

Do not use this skill for a single already-scoped PR. Use the ship skill directly for that.

Defaults

  • User: ianphil.
  • Repository: ianphil/chamber.
  • Base branch: master.
  • Labels are priority buckets: now, next, later.
  • Default slate label: ask if unclear; otherwise use the label named by the user.
  • Prefer Git Town stacks for slate execution. Independent PRs are the exception, not the default, when every PR needs release metadata.
  • Use gh for issue and PR operations.
  • Never use MCP.
  • Do not run npm run make:sandbox.
  • If packaging/runtime smoke is needed, use npm run package instead.
  • Run npm run lint and npm test for each PR through the ship skill.
  • Use the narrowest existing runtime smoke that proves the changed surface still runs.
  • Run Uncle Bob for non-trivial, runtime, architectural, or security-sensitive PRs, and fix critical findings.
  • Include Closes #NNN or Fixes #NNN for every issue intentionally addressed by a PR.
  • Let the ship skill recommend the version bump, then accept the recommendation unless the user gives a reason to override. For a stack, apply sequential version bumps down the stack so child PRs do not duplicate parent release metadata.
  • Draft and apply a matching CHANGELOG.md entry for every non-trivial PR.
  • Do not merge PRs unless the user explicitly asks. Creating reviewable PRs is the default end state.

Read the full file on GitHub · 340 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. 2mo ago First seen · 340 lines · 76 tokens per session scan A 86bef376bdc7

Subscribe to this mod's changes

issue-slate is a skill published in the GitHub repository ianphil/chamber (12 stars, last pushed 1mo ago), licensed MIT. It adds 76 tokens to every session and 3,182 once invoked, about $0.0003 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 2026-08-30.

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