STAR: Skill for Codex

.agents/skills/star-plan-executor/SKILL.md

star-plan-executor is a skill for Codex from wanghao9610/STAR. It costs 57 tokens per session (6,117 once invoked), scanned A, original, MIT.

A workflow step that carries out a small, specific research sub-plan by turning it into code and running basic checks. A research sub-plan is a focused piece of a larger study.

In plain words
What is it for?
Use it to orient yourself in the codebase, implement one research task, run light validation, and preserve the task's intermediate files and results.
Why use it?
It connects a written research task to an actual implementation while keeping changes limited to the relevant part of the project.

Skill for Codex

Written for Codex: agents/openai.yaml present. Also seen: mentions subagents; installed under .agents/ (shared by several agents); mentions AGENTS.md.

This is wanghao9610/STAR's own configuration. It tells Codex how to work on STAR 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 STAR configures →

Reuse

Borrowing it

Nothing to install: this file belongs to wanghao9610/STAR. 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/wanghao9610/STAR/main/.agents/skills/star-plan-executor/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/wanghao9610/STAR

Made for: 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 star-plan-executor

README.md
[![agentmods](https://agentmods.dev/badge/skills/wanghao9610/star/star-plan-executor.svg)](https://agentmods.dev/skills/wanghao9610/star/star-plan-executor)
Your own site
<a href="https://agentmods.dev/skills/wanghao9610/star/star-plan-executor"><img src="https://agentmods.dev/badge/skills/wanghao9610/star/star-plan-executor.svg" alt="Measured on agentmods" height="20"></a>
Per session 57 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,117 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 73
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
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 $0.00057 $0.06117
Opus 5 $0.00028 $0.03059
Sonnet 5 $0.00011 $0.01223
Haiku 4.5 $0.00006 $0.00612

Measured today against content hash 398ea7c5b770, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

star-plan-executor 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 today.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/scan.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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/star-plan-executor/SKILL.md · 120 lines

How it starts

The opening of the file, as written. The whole thing — 120 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Research Plan Executor

Invocation: star-plan-executor PLAN_NAME [DESCRIPTION]. Resolve the leaf by slug, numeric prefix, or filename. Remaining natural language may constrain scope or explicitly authorize execution choices; ask only when the target, research scope, acceptance criteria, cost, key inputs, destructive action, or overwrite remains unresolved.

Shared conventions. Resolve the invocation target and mode first. Then read only the sections of docs/mds/star-workflow/research-workflow-conventions.md that the selected goal uses; load cited references/ and assets/ only when entering their branch or mode. Read .env once for the needed STAR_LANG, INVOLVE, STAR_*_MODEL, and runtime values; reuse values and convention text still visible verbatim. Resolve language under conventions §7.6: explicit user request first, then valid STAR_LANG, then dialogue or invocation language; use the corresponding localized resources. SKILL_zh.md is for human readers and is never loaded at runtime. Preserve an existing document's frontmatter language. Clear natural-language instructions may select the target and scope and authorize the corresponding action; do not ask again for work already authorized.

After resolving the target, run scripts/scan.sh --slim and treat its plan-frontmatter and run-log-frontmatter digest as raw input to Steps 0–1; still read the target leaf in full. If the script fails, read the plan files directly and report the fallback.

Passing a tier model. Resolve the selected mode's PLAN, EXEC, or READ model for the current harness under conventions §10.8. Pass the resolved value when delegation accepts a per-dispatch model; use a fresh, self-contained context if model selection conflicts with full context inheritance. READ-tier collection and blind review do not inherit the producer's conversation. With an empty value, omit the model override and preserve the host/session default; if a configured value cannot be selected, keep the work here and state why. Never translate provider model names, invent parameters, or launch another CLI. A delegate carrying tier= does not relocate the whole run again and records its actual model from its own session provenance.

Read the full file on GitHub · 120 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. today Changed · -7 lines · -114 tokens per session 398ea7c5b770
  2. 5d ago Changed a6bd1c305970
  3. 8d ago First seen · 127 lines · 171 tokens per session scan A d01af948ec70

Subscribe to this mod's changes

star-plan-executor is a skill published in the GitHub repository wanghao9610/STAR (51 stars, last pushed today), licensed MIT. It adds 57 tokens to every session and 6,117 once invoked, about $0.0003 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 2026-08-30.