Agent skill

Night Market Change Control

by athola in athola/claude-night-market

Classify, gate, and review changes. An agent skill from athola/claude-night-market.

MITAuto-check passedDevelopment

Install Night Market Change Control

skills CLI
$ npx skills add athola/claude-night-market --skill night-market-change-control -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install athola/claude-night-market night-market-change-control --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/athola/claude-night-market.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/night-market-change-control .claude/skills/night-market-change-control && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
night-market-change-control
GitHub stars
341
Token cost
~3.2k tokens
SKILL.md length
1,472 words
Files
1
Skills in repo
152
Repo updated
First seen
Licence
MIT

At a glance

Classify, gate, and review changes. An agent skill from athola/claude-night-market.

  • Works in 5 steps: Branch → Local gates before committing → The pre-commit gauntlet → …
  • Use night-market-debugging-playbook
  • SKILL.md covers The law stack, The ten constitution rules, Change classification and The change lifecycle, plus 5 more sections
  • Calls make, git and rg

What it does

Night Market Change Control is an agent skill from athola/claude-night-market. Classify, gate, and review changes. Use when landing a PR, releasing, or amending rules. Do not use for failure triage; use night-market-debugging-playbook.

Its SKILL.md is about 3.2k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Development. The repository describes itself as: 23 Claude Code plugins: TDD enforcement hooks, git/PR workflows, spec-driven development, code review, project lifecycle, fix-from-error, maintenance automation, context… The licence is MIT.

When your agent uses it

  • Use night-market-debugging-playbook

Example prompts

  • “/night-market-change-control”

Requirements

  • Python 3

Workflow steps

5 steps, taken from the step headings in SKILL.md.

  1. Branch
  2. Local gates before committing
  3. The pre-commit gauntlet
  4. PR flow
  5. Release

What it can do on your machine

Read from SKILL.md and the folder at commit 9f3eb00. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • make
    • git
    • rg
    • python3

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md. Its commands use git, which can reach the network depending on how they are called.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Night Market Change Control loads about 3.2k tokens when it runs. Until then it costs about 46 tokens; SKILL.md has 1,472 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~46
When it runs · the whole SKILL.md, loaded when a task matches
~3.2k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from athola/claude-night-market at commit 9f3eb00, republished under its MIT licence (© athola). 1,472 words, ~3,220 tokens.

Download SKILL.mdSave it as .claude/skills/night-market-change-control/SKILL.md (or your agent's skills folder).
name
night-market-change-control
description
Classify, gate, and review changes. Use when landing a PR, releasing, or amending rules. Do not use for failure triage; use night-market-debugging-playbook.

Night Market Change Control

Every change to this repo passes through a fixed law stack, a classification step, and a gauntlet of automated gates. This skill tells you which class your change is, which gates it must pass, and which rules are non-negotiable because a past incident made them so. Nothing here may be routed around: if a gate fails, fix the cause, never the gate.

Jargon used below: a "gate" is any automated check that can block a commit, PR, or release. An "ADR" is an Architecture Decision Record in docs/adr/. The "Iron Law" is constitution rule 3: no implementation without a failing test first.

The law stack

When two documents conflict, the higher one wins.

RankSourceContents
1CONSTITUTION.md10 immutable rules, override and amendment process
2.claude/rules/8 project rules (markdown style, read budgets, slop gates, invariants)
3docs/adr/17 numbered decision records (0001 to 0017)
4Guides in docs/quality-gates, testing-guide, plugin-development-guide

A skill, hook, or agent instruction that says "skip rule N" without an explicit user grant or a merged amendment is itself a defect (CONSTITUTION.md, Override mechanism section).

The ten constitution rules

One line each. Where a rule was written in blood, the incident column names the blood.

#RuleMotivating incident
1Disclose AI involvement in every PR; never strip real or add fake AI attributionEnforced by hook plugins/imbue/hooks/vow_no_ai_attribution.py
2AI commits over 200 changed lines need a spec, ADR, or plan doc first (lockfiles, fixtures, snapshots excluded)Size = scrutiny principle; see the unbloat incident under non-negotiables
3Iron Law TDD: failing test before implementation for plugin Python. Skills and prose need structural tests (test_skill_<name>.py)Design principle, no single incident
4One identity leak ("As a large language model") in any committed artifact is an automatic revertPattern catalog in scribe slop-detector
5Quality claims ("fast", "production-ready") need in-repo evidence or deletionDesign principle
6No bypassing gates: no --no-verify, no SKIP=hook, no unauthorized force push, no bare suppression comments without a stated reasonNeutered-mypy incident (CHANGELOG 1.9.12); bulk-ignore revert 06b9b1db
7New dependencies need justification; 18 months unmaintained is presumed abandoned; verify AI-suggested package names against the registrySlopsquatting defense; hook guard_package_hallucination.py (imbue)
8Docs cost reader-time (audience x frequency x per-read time); writing effort must matchDesign principle
9Prefer deletion over rewriting; AI slop is overwhelmingly additiveDesign principle
10Errors are not optional: propagate by default, no bare except, safe-to-discard needs an inline "why" commentSilent-failure sweep 666171c3; ecosystem bare-except campaign

Change classification

Classify before the first commit. The class decides the paperwork.

ChangeRequired process
AI-generated diff, 200 changed lines or fewerPlain PR through the standard gates
AI-generated diff over 200 changed linesSpec, ADR, or planning doc BEFORE the code (rule 2)
Load-bearing design decisionNumbered ADR in docs/adr/ (next number after 0017)
New project-wide ruleNew file in .claude/rules/ via plain PR; existing rules cite an origin issue or discussion (#454, #457)
Constitution amendmentPR titled constitution: amend rule N, a summary of what changes and why, sign-off from the repo owner
ReleaseVersion bump, changelog section, v-prefixed tag (lifecycle below)

The change lifecycle

1. Branch

Branch from master (the main branch) using <topic>-<version>:

bash
git checkout master && git pull
git checkout -b my-topic-1.9.16

Live examples in git branch -a: ai-slop-1.9.4, bugfixes-1.9.5, discussions-fix-1.9.14. Never delete backup/unbloat-* branches. They are the recovery points for past deletion campaigns (backup/unbloat-20260328 is how the 2026-03-28 over-deletion was undone).

2. Local gates before committing
bash
make lint          # ruff format + ruff check --fix + bandit
make typecheck     # per-plugin strict mypy (all plugins)
make test          # per-plugin pytest via scripts/run-plugin-tests.sh
make validate-all  # plugin structure validation

Plugin tests MUST run per plugin (make <plugin>-test or make -C plugins/<plugin> test). Root pytest excludes plugins/* to avoid import-path collisions.

3. The pre-commit gauntlet

git commit runs .pre-commit-config.yaml hooks in this order (verified 2026-07-02):

  1. Suppression guards: check-noqa (blocks bare inline lint suppressions), check-docstring-quality, check-json-utils-drift, check-per-file-ignores.
  2. Hook registration: check-hook-registrations, check-plugin-hooks.
  3. Code gates: run-plugin-typecheck --all (strict mypy on every plugin, not just changed ones), run-plugin-tests --changed.
  4. Skill and plugin validation: validate-skill-descriptions, one validate-<plugin>-plugin hook per plugin, check-context-optimization, validate-description-budget, check-markdown-links, capabilities-sync-check, check-skill-graph-drift, check-skill-exit-criteria-drift.
  5. Standard file hygiene (trailing whitespace, YAML/TOML/JSON syntax, merge conflicts, debug statements).
  6. bandit security scan.
  7. ruff-format, ruff-fix, ruff-check.
  8. Pin freshness: check-ruff-version, check-pinned-versions.

The typecheck gate runs --all deliberately. It used to run --changed, and a global mirrors-mypy hook silently disabled 13 error codes. Both were fixed in 1.9.12 (CHANGELOG). Do not weaken either setting.

4. PR flow

Run in this order (all are sanctum slash commands):

  1. /sanctum:prepare-pr updates docs, runs tests, drafts the PR.
  2. /sanctum:pr-review reviews scope, requirements, and code.
  3. /sanctum:validate-pr builds and executes a diff-derived test plan, and proves revert-tests are genuine guards.
  4. /sanctum:fix-pr and /sanctum:resolve-threads handle feedback.

For plugin-touching changes, add abstract:plugin-review at the matching tier:

TierWhenScopeTime
branchDefault during workAffected and related plugins~2 min
prBefore mergeAffected and related plugins~5 min
releaseBefore version bumpEvery plugin~15 min
5. Release
  1. Bump the ecosystem version. .claude-plugin/marketplace.json is the source of truth; the bumper fans it out to every plugin's plugin.json, metadata.json, openpackage.yml, pyproject.toml, and __init__.py:

    bash
    python3 plugins/sanctum/scripts/update_versions.py 1.9.16

    Or use the sanctum:version-updates skill, which runs a git-workspace-review preflight first.

  2. Move [Unreleased] entries in CHANGELOG.md into a dated version section (Keep a Changelog 1.1.0, SemVer). Never rewrite or de-slop historical entries.

  3. Update the docs of record: docs/api-overview.md version reference, plugin READMEs, and the generated capabilities reference via /sanctum:sync-capabilities.

  4. Run abstract:plugin-review --tier release.

  5. /sanctum:create-tag pushes a v-prefixed tag. The tag matching v* triggers .github/workflows/cross-framework-publish.yml (semver validation, cross-framework build, tarballs, GitHub release). Pushes to master separately trigger trust-attestation.yml (full test run plus SLSA attestation).

Show full SKILL.md (562 more words)Show less

Landing a change: checklist

StepActionGate satisfied
ClassifyMatch the change against the classification tableRule 2, amendment process
Branch<topic>-<version> off masterConvention
Test firstFailing test before implementationRule 3 (Iron Law)
Local gatesmake lint && make typecheck && make testRule 6
CommitPlain commit, no bypass flags, honest attributionRules 1 and 6
PRprepare-pr, pr-review, validate-pr; disclose AI involvementRule 1
Plugin reviewabstract:plugin-review at branch or pr tierPlugin quality
MergeAll CI checks green, review threads resolvedCI

Non-negotiables

Each row is a settled battle. Re-litigating one requires new evidence stronger than the incident that settled it.

Non-negotiableRationaleIncidentEvidence
Never bypass or weaken a gateA green gate that skips checks is worse than no gate: it certifies broken codemirrors-mypy silently disabled 13 error codes; typecheck ran changed-only; bulk ruff ignores hid 73 real violationsCHANGELOG 1.9.12; commit 06b9b1db
No swallowed errors, evercatch-and-continue in a scanner drops findings silently and reports cleanScanners B1-B4 returned clean results on malformed input for monthscommit 666171c3 (PR #521, issue #575)
Deletion campaigns need a backup branch and a markdown-reference scanPython import graphs miss scripts referenced only from skills and commandsTier-3 unbloat deleted 182 files (66K lines); skill-referenced scripts had to be restoredcommits a3f11323 (delete), 3f280334 (restore); branch backup/unbloat-20260328
No DRY consolidation across plugin boundariesPlugins are independent deployables, and shared code couples their release cyclestasks_manager consolidated to a shared script, reverted, then differentiated per plugincommits 054e2679, 29961cd2, d89a55c7
No speculative infrastructureUnused abstraction is pure carrying costLSP proxy landed without a consumer and was reverted in PR #193 reviewcommit bc318947
Identity leaks are an automatic revertOne leaked phrase proves unreviewed AI text shippedConstitution rule 4CONSTITUTION.md
Historical CHANGELOG entries are never editedThe changelog is a record, not prose to polishCodified as an anti-goal in the slop rules.claude/rules/slop-scan-for-docs.md (anti-goals)

When NOT to use

  • A gate is failing and you need to diagnose why: use night-market-debugging-playbook.
  • You want the full story behind an incident named above: use night-market-failure-archaeology.
  • You need the mechanics of running tests, lint, or the release scripts (flags, artifacts, environments): use night-market-operations.
  • You are judging whether a design fits the architecture: use night-market-architecture-contract.
  • You are deciding what evidence a test must provide: use night-market-validation-and-qa.

Exit Criteria

  • The change is classified against the classification table, and any over-200-line AI diff has a spec, ADR, or plan doc committed before the implementation.
  • make lint, make typecheck, and make test pass locally, and no bypass flag (--no-verify, SKIP=, force push) appears in the branch history.
  • The branch name matches <topic>-<version> and is based on master.
  • The PR description discloses AI involvement (authored, co-authored, or reviewed).
  • For a release: marketplace.json, the dated CHANGELOG.md section, and the pushed v* tag all carry the same version.
  • Any constitution change is in a PR titled constitution: amend rule N with repo-owner sign-off.

Provenance and maintenance

Compiled 2026-07-02 against repo v1.9.15 (10 constitution rules, 8 project rules, 17 ADRs). Re-verify volatile facts before relying on them:

bash
rg -c '^### [0-9]' CONSTITUTION.md          # expect 10
ls .claude/rules/ | wc -l                    # expect 8
ls docs/adr/ | wc -l                         # expect 17
rg -n '"version"' .claude-plugin/marketplace.json | head -1
rg -n '      - id:' .pre-commit-config.yaml  # current gate order
rg -n 'v\*' .github/workflows/cross-framework-publish.yml
rg -n 'amend rule' CONSTITUTION.md           # amendment title convention

Commit hashes cited above were verified with git log --oneline -1 <hash> on 2026-07-02. Unverified/candidate: the exact count of files restored after the unbloat incident (commit subjects confirm the delete and restore, not the restored-file count), and whether docs/api-overview.md holds a version table or a single version reference (one version mention verified).

© athola, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in .claude/skills/night-market-change-control of athola/claude-night-market.

Open the folder on GitHubat commit 9f3eb00

Compare with similar skills

Night Market Change Control next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

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PR Babysitteropeninterpreter/openinterpreter69k3 repos~4.2kAutomated safety check: PassApache-2.0
Code Review ChecklistshareAI-lab/learn-claude-code78k4 repos~1.1kAutomated safety check: PassMIT

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Categories

Questions about Night Market Change Control

What does Night Market Change Control do?

Classify, gate, and review changes. An agent skill from athola/claude-night-market. Night Market Change Control is an agent skill from athola/claude-night-market. Classify, gate, and review changes.

When should I use Night Market Change Control?

Night Market Change Control fits situations like: use night-market-debugging-playbook.

How do I install Night Market Change Control in Claude Code?

Run `npx skills add athola/claude-night-market --skill night-market-change-control -a claude-code`. Or copy the skill folder (.claude/skills/night-market-change-control in athola/claude-night-market) into .claude/skills/night-market-change-control in your project. Claude Code loads it when a task matches its description.

How do I install Night Market Change Control in Codex?

Run `npx skills add athola/claude-night-market --skill night-market-change-control -a codex`. Or copy the skill folder (.claude/skills/night-market-change-control in athola/claude-night-market) into .agents/skills/night-market-change-control in your project. Codex loads it when a task matches its description.

Can I use Night Market Change Control in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add athola/claude-night-market --skill night-market-change-control -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/night-market-change-control, .gemini/skills/night-market-change-control, .github/skills/night-market-change-control and .opencode/skills/night-market-change-control in your project.

What does Night Market Change Control need to run?

Going by SKILL.md and its folder, Night Market Change Control needs the command-line tools its instructions call (make, git, rg and python3). Our summary lists: Python 3.

Does Night Market Change Control access the network?

SKILL.md contains no URLs. Its commands use git, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Night Market Change Control safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Night Market Change Control use?

Night Market Change Control is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Night Market Change Control use?

About 3.2k tokens (SKILL.md is roughly 13k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Night Market Change Control?

Skills that share tags, products or a category with Night Market Change Control: Vercel Composition Patterns (supabase/supabase, 111k stars), Finishing a Development Branch (obra/superpowers, 297k stars), Typescript Advanced Types (rolling-scopes/rsschool-app, 10k stars) and PR Babysitter (openinterpreter/openinterpreter, 69k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Night Market Change Control?

athola (a GitHub user) maintains it in athola/claude-night-market, which has 341 GitHub stars. The repository holds 152 skills in this directory. The repository was last updated on October 9, 2026.

Source: athola/claude-night-market on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.