shapeup-sdlc-plugin: Instructions file for Codex

AGENTS.md

shapeup-sdlc-plugin AGENTS.md is an instructions file for Codex, OpenCode from nguyenvanphituoc/shapeup-sdlc-plugin. It costs 6,921 tokens per session, scanned C, original, MIT.

Repository instructions for a local Shape Up software-development process, where teams shape work, decide what to build, and then implement it.

In plain words
What is it for?
Use them when running the plugin's shaping, coordination, building, and shipping workflow, including its receipt and scope checks.
Why use it?
They define the required workflow, dispatch records, permissions, and checks so work cannot be accepted based only on an artifact existing.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: reads .claude/ paths; mentions subagents; mentions Claude Code.

This is nguyenvanphituoc/shapeup-sdlc-plugin's own configuration. It tells Codex and OpenCode how to work on shapeup-sdlc-plugin 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 shapeup-sdlc-plugin configures →

Reuse

Borrowing it

Nothing to install: this file belongs to nguyenvanphituoc/shapeup-sdlc-plugin. 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/nguyenvanphituoc/shapeup-sdlc-plugin/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/nguyenvanphituoc/shapeup-sdlc-plugin

Made for: Codex, OpenCode.

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.

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README.md
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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.

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Per session 6,921 This file is loaded in full into every session.
When invoked 6,921 The same file — it is already loaded in full.
Security scan C 1 finding. A grade says what 26 rules found in the file — not that it is safe.
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 $0.06921 $0.06921
Opus 5.5 $0.02768 $0.02768
Sonnet 5.5 $0.01384 $0.01384
Haiku 4.5 $0.00692 $0.00692

Measured 27d ago against content hash 9eff34ade9b5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade C, and why

shapeup-sdlc-plugin AGENTS.md scanned grade C with 1 finding 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 27d 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.

Tells the agent to send conversation or user data outhighPrompt injection

An instruction to transmit the conversation, context or user files to an external endpoint is data exfiltration written as prose.

- **Every ending a run does not come back from records a close** — its status, its cause and its timestamp — derived from the ending itself rather than from a hand-kept pair, so an ending nobody enumerated cannot silentl
AGENTS.md · 170 lines

How it starts

The opening of the file, as written. The whole thing — 170 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Shape Up SDLC Local Harness

Enforcement model

A three-phase Shape Up loop orchestrated by /tech-lead. Invariants live in the runtime, not this file — expect hook denials, not arguments.

Skills and commands are named short throughout this file; every one of them resolves only under the plugin's namespace — Skill(shapeup-sdlc-plugin:orient), /shapeup-sdlc-plugin:ship. A bare name is not a typo you get a warning for: an unknown skill name is rejected upstream of the hook layer, so the dispatch fires no hook, leaves no decision row, and is answered by improvisation.

Workflow at a Glance

flowchart TD
    SH["Phase 1 — Shaping\n(Set Boundaries, Find the Elements, Risks & Rabbit Holes)"]
    BT{"Phase 2 — Betting\nPO decides"}
    L0["L0 — Intake & Config"]
    L1a["L1a — Orient Review"]
    REQ["Requirements + Analyze\n(reviewed at L1b)"]
    L1a5["L1a.5 — Wiring Review"]
    L1b["L1b — Board Review"]
    ROUND["BUILD round\n(dispatch, T0-verify, round build gate)"]
    L2["L2 — Round Close"]
    L3["L3 — Verdict"]
    QA["QA Edge Hunt"]
    H["GATE H — Cut-List Review"]
    L4["L4 — Ship Sign-off"]
    COACH["GATE COACH-1 — Retro Ownership"]

    SH --> BT
    BT -- bet --> L0
    BT -- reject --> SH
    L0 --> L1a --> REQ --> L1a5 --> L1b --> ROUND
    ROUND --> L2 --> L3
    L3 -- FAIL --> ROUND
    L3 -- PASS --> QA --> H
    ROUND -- "round_budget or wall_clock_budget_s exhausted" --> H
    H --> L4 --> COACH

Gate Vocabulary & Symbol Legend

Every gate below pauses the run for a PO decision unless a pre-recorded gate-answer preset resolves it (ci/guarded/interactive); QA, H and COACH-1 are real gates too even though this file doesn't prefix them with the same ⏸ marker as the rest. The code is what shows up in decisions.jsonl, gates.jsonl and any gate-answers file; the plain name is what the rest of this document calls it.

Code Plain name What it checks Who answers
L0 Intake & Config Model/budget matrix set, worker roster confirmed on disk PO
L1a Orient Review The Scout's code-surface map and spike findings, before any board exists PO
L1a.5 Wiring Review wiring-map.md — every use case traced to its seam and entry point PO
L1b Board Review The scope board and substrate disjointness — where scope is actually decided PO
L2 Round Close Board 100% done and T0-green, before the round's work goes to EVAL (see note) PO
L3 Verdict The evaluator's PASS/FAIL judgment for the round PO
QA QA Edge Hunt Exploratory findings outside what EVAL already probed — never a verdict PO
H Cut-List Review Scope-hammer's census and baseline comparison — what ships, what's cut TL/PO
L4 Ship Sign-off Final go/no-go, gated on GATE H's census PO
COACH-1 Retro Ownership Which skill owns each retro rule, before it's written to the knowledge base PO

Read the full file on GitHub · 170 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. 27d ago Changed · +70 lines · +1,073 tokens per session 9eff34ade9b5
  2. 29d ago Changed · +22 tokens per session 8ad138f0f06e
  3. 1mo ago Changed · +251 tokens per session 9f7729dd3d08
  4. 1mo ago Changed · +34 tokens per session 804baa21663f
  5. 1mo ago Changed · +364 tokens per session 4488c94bdfc2
  6. 1mo ago Changed · +31 tokens per session 412e73092be6
  7. 1mo ago Changed · +1 lines · +457 tokens per session 4c2f06e9cf99
  8. 1mo ago Changed · +1 lines · +169 tokens per session 332e245f69cc
  9. 1mo ago Changed · +1 lines · +274 tokens per session scan A → C 61e5f333c820
  10. 1mo ago First seen · 97 lines · 4,246 tokens per session scan A cc213f911cd3

Subscribe to this mod's changes

shapeup-sdlc-plugin AGENTS.md is an instructions file published in the GitHub repository nguyenvanphituoc/shapeup-sdlc-plugin (3 stars, last pushed 27d ago), licensed MIT. It adds 6,921 tokens to every session, about $0.0277 per session on Opus 5.5. A static security scan graded it C with 1 finding (tells the agent to send conversation or user data out). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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