coach

coach is a skill for Claude Code from nguyenvanphituoc/shapeup-sdlc-plugin. It costs 130 tokens per session (3,115 once invoked), scanned A, original, MIT.

A feedback-recording skill for a software delivery process. It turns informal product-owner or tech-lead comments at the final sign-off into shared guidelines for future runs.

In plain words
What is it for?
Use it to record recurring issues such as over-engineering or missing mobile work, and place each lesson with the skill that should apply it.
Why use it?
Useful lessons can otherwise stay in one conversation or be lost after a release. It stores the guidance in committed project files so teammates receive it and the relevant workers read it later.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the shapeup-sdlc-plugin plugin — 17 skills, 11 commands, 4 hooks shipped together

Good fit Use it to record recurring issues such as over-engineering or missing mobile work, and place each lesson with the skill that should apply it.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/nguyenvanphituoc/shapeup-sdlc-plugin/coach
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 nguyenvanphituoc/shapeup-sdlc-plugin --skill coach
Clone the repo
git clone --depth 1 https://github.com/nguyenvanphituoc/shapeup-sdlc-plugin

Made for: Claude Code.

Or install shapeup-sdlc-plugin, the plugin that ships this one along with the rest of its 17 skills, 11 commands, 4 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 coach

README.md
[![agentmods](https://agentmods.dev/badge/skills/nguyenvanphituoc/shapeup-sdlc-plugin/coach.svg)](https://agentmods.dev/skills/nguyenvanphituoc/shapeup-sdlc-plugin/coach)
Your own site
<a href="https://agentmods.dev/skills/nguyenvanphituoc/shapeup-sdlc-plugin/coach"><img src="https://agentmods.dev/badge/skills/nguyenvanphituoc/shapeup-sdlc-plugin/coach.svg" alt="Measured on agentmods" height="20"></a>
Per session 130 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,115 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.
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 $0.00130 $0.03115
Opus 5 $0.00065 $0.01558
Sonnet 5 $0.00026 $0.00623
Haiku 4.5 $0.00013 $0.00312

Measured 8d ago against content hash 60f3e5608db8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

coach 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 8d 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/coach/SKILL.md · 203 lines

How it starts

The opening of the file, as written. The whole thing — 203 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Coach Skill — RLHF for the harness

The /coach skill closes the learning loop. After a feature ships, the PO/TL drops raw, unstructured feedback at the L4 Gate ("the executor keeps over-engineering DTOs", "the BA under-scopes mobile"). The coach distills that into durable guidelines and files them where the relevant worker will read them on its next run — so the lesson is learned once and applied by the whole team forever, not re-explained every sprint.

Two properties make this useful and were missing before:

  1. Team-shared, not local. Guidelines are written under shapeup/knowledge-base/, which is committed (the .shapeup/ run-trace root is gitignored — guidelines written there would never reach a teammate). A git pull is all a team member needs to inherit the harness's accumulated judgment.
  2. Read back, not write-only. Each guideline is filed under the one skill that will act on it, in that skill's own file, so the consumer loads only its own rules. task-executor, ba-pitch-analyzer, and qa-edge-hunter each read their file at the top of their run.
PO feedback at L4 ─► /coach ─► [parse into candidate rules] ─► ⏸ GATE COACH-1 (categorize, ask — never assume)
                                                                          │
                          shapeup/knowledge-base/<skill>.md ◄───┤  (one file per coachable skill, committed)
                                                                          │
                  next run: task-executor / ba-pitch-analyzer / qa-edge-hunter reads its own file
                                                                          │
              shapeup/knowledge-base/harness-defects.md ◄───────┘  (mechanism at fault →
                  drafted raw idea for the Betting Table — read by no worker, committed)

Coachable skills (the only valid categories)

A guideline is only useful if a worker reads it back. These three workers have a read-side hook; they are the complete set of categories the gate may offer:

Read the full file on GitHub · 203 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. 8d ago First seen · 203 lines · 130 tokens per session scan A 60f3e5608db8

Subscribe to this mod's changes

coach is a skill published in the GitHub repository nguyenvanphituoc/shapeup-sdlc-plugin (2 stars, last pushed today), licensed MIT. It adds 130 tokens to every session and 3,115 once invoked, about $0.0006 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 2026-08-31.