mstar-conventions

mstar-conventions is a skill for Claude Code from btspoony/mstar-harness. It costs 98 tokens per session (7,860 once invoked), scanned A, original, MIT.

A guide to Morning Star project folders, plan files, documentation boundaries, and Git branches. It explains where plans, specifications, iterations, knowledge, and project files belong.

In plain words
What is it for?
Use it when discovering or creating the Morning Star directory structure, initializing plans, storing review materials, or defining branches for specification-driven work.
Why use it?
It reduces confusion about which directory is authoritative and how work should be organized when there are multiple plans or no active plan.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: mentions AGENTS.md.

Part of the morning-star-harness plugin — 27 skills, 8 commands, 14 agents, 2 hooks shipped together

Good fit Use it when discovering or creating the Morning Star directory structure, initializing plans, storing review materials, or defining branches for specification-driven work.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/btspoony/mstar-harness/mstar-conventions
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 btspoony/mstar-harness --skill mstar-conventions
Clone the repo
git clone --depth 1 https://github.com/btspoony/mstar-harness

Made for: Claude Code.

Or install morning-star-harness, the plugin that ships this one along with the rest of its 27 skills, 8 commands, 14 agents, 2 hooks.

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 mstar-conventions

README.md
[![agentmods](https://agentmods.dev/badge/skills/btspoony/mstar-harness/mstar-conventions/github.svg)](https://agentmods.dev/skills/btspoony/mstar-harness/mstar-conventions)
Your own site
<a href="https://agentmods.dev/skills/btspoony/mstar-harness/mstar-conventions"><img src="https://agentmods.dev/badge/skills/btspoony/mstar-harness/mstar-conventions/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 mstar-conventions

Your own site · 80×15
<a href="https://agentmods.dev/skills/btspoony/mstar-harness/mstar-conventions"><img src="https://agentmods.dev/badge/skills/btspoony/mstar-harness/mstar-conventions.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 98 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 7,860 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 pass 7 Sept 2026
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 $0.00098 $0.07860
Opus 5.5 $0.00039 $0.03144
Sonnet 5.5 $0.00020 $0.01572
Haiku 4.5 $0.00010 $0.00786

Measured 4d ago against content hash 40ccadfead8d, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

mstar-conventions 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 4d 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.

skills/mstar-conventions/SKILL.md · 266 lines

How it starts

The opening of the file, as written. The whole thing — 266 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Load order(必读顺序)

首次 Read 本 skill 前:必须先 Read mstar-harness-core(SKILL.md)。 本 skill 只约定 目录与路径;不突破状态机与门禁。冲突时 以 mstar-harness-core 为准。

你还可能要 Read 何时
mstar-artifacts Main plans, review summaries, current execution/issue fields, InReview/QC waves and knowledge
mstar-project-governance 项目 roadmap 内容权威与读写/导入/导出规则;legacy roadmap.md 仅 transport/history;residual register 迁移边界与 _default
mstar-branch-worktree Assignment 写分支 / worktree / QC 检出
mstar-review-qc 派 QC(PM 同轮必读;SDD 强制 tri)
mstar-sdd PM 执行 Execution mode: sdd 的 implement 波次

Workflow

主链:按「路径符号」+「{HARNESS_DIR} 解析顺序」确定目录(默认 .mstar/,兼容 .agents/)→ 按「初始化 Plan 目录」以 mstar harness scaffold + mstar store init 建立 authored 目录与 ACTIVE store(唯一 bootstrap 路径),并追加 gitignore 进程产物集(未声明 harness 根规则时;进程本地、结果共享)→ 多 Plan · 同一 Spec 时登记 iteration base / spec 集成分支 / 各 Plan 实现分支 / PR target → 主 plan 写入 {PLAN_DIR}(Plan-Writing Path Gate)。未启用 plan 或无 ACTIVE store 时 → 对话追踪(no-plan mode),门禁(QC/QA)照常。

路径符号(SSOT)

符号 默认
{HARNESS_DIR} .mstar/
{PLAN_DIR} {HARNESS_DIR}/plans/
{SDD_DIR} {HARNESS_DIR}/sdd/<plan-id>/(SDD 运行时 scratch + review bundle;gitignored)
{ITERATION_DIR} {HARNESS_DIR}/iterations/
{KNOWLEDGE_DIR} {HARNESS_DIR}/knowledge/(默认;.mstarc knowledge_dir 声明时用声明值)
{SPECS_DIR} {HARNESS_DIR}/specs/(默认);解析见下文「{SPECS_DIR} 解析」
{WORKFLOW_DIR} {HARNESS_DIR}/workflows/ (default; .mstarc workflow_dir overrides it) — retained ordinary bodies, append-only notes.jsonl and workflow-owned reports/ (e.g. <workflow-id>/reports/e2e.md); historical snapshot shape → mstar-engine-legacy references/migration-source-shapes.md
{PROJECT_DIR} {HARNESS_DIR}/projects/(默认;.mstarc project_dir 声明时用声明值)——project 层目录;旧 roadmap.md 仅作文件 transport/history
{REVIEW_DIR} {HARNESS_DIR}/reviews/(默认;.mstarc review_dir 声明时用声明值)——review 运行目录树(codebase audit / PR / branch / diff review 的 report 与 evidence;mstar audit scaffold 写入,mstar pr-review report-path 解析;gitignored)
{HARNESS_DIR}/store.db 进程/control harness 根下的 issue/catalog/roadmap/milestone 与 execution_ 执行权威* SQLite(resolveProcessHarnessDir 后 <resolved root>/store.db;尊重 .mstarc)。功能/集成 worktree 不在 cwd 建库;roadmap 规则 → mstar-project-governance。

Read the full file on GitHub · 266 lines

Files

What ships with it

3 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. 4d ago Changed · +2 lines 40ccadfead8d
  2. 7d ago Changed 9be8cffd051f
  3. 16d ago Changed · -154 tokens per session 5ded39817dcc
  4. 19d ago Changed · +1 lines 09beac424e73
  5. 20d ago Changed · +4 lines · +6 tokens per session 3e1ff048421a
  6. 24d ago Changed 80270dc0b5d5
  7. 25d ago Changed 77c50bc0579d
  8. 27d ago Changed · +9 tokens per session b9f9a03b70ed
  9. 1mo ago Changed c75b2e1301fb
  10. 1mo ago First seen · 259 lines · 237 tokens per session scan A 852e097f311a

Subscribe to this mod's changes

mstar-conventions is a skill published in the GitHub repository btspoony/mstar-harness (68 stars, last pushed 2d ago), licensed MIT. It adds 98 tokens to every session and 7,860 once invoked, about $0.0004 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.

Related

mstar-conventions compared with skills from other repositories

mstar-conventions next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
mstar-conventionsbtspoony/mstar-harnessSkill682d agoMITA98Claude Code
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using-git-worktreesrpamis/cometSkill3.3kyesterdayMITA36Claude Code, Codex
comet-archiverpamis/cometSkill3.3kyesterdayMITA35Claude Code, Codex
comet-archiverpamis/cometSkill3.3kyesterdayMITA34Codex
comet-github-pr-reviewrpamis/cometSkill3.3kyesterdayMITA69Claude Code, Codex
comet-github-idea-to-issuerpamis/cometSkill3.3kyesterdayMITA68Claude Code, Codex