scrum-master

scrum-master is a skill for Claude Code, Codex from mrDesign-ww/vault-os. It costs 127 tokens per session (2,117 once invoked), scanned A, a copy of scrum-master, MIT.

A Scrum Master guide for analysing agile team work using sprint data and coaching practices. Scrum is a way of organising iterative software work; a sprint is one time-boxed work period.

In plain words
What is it for?
Use it for sprint planning, velocity analysis, probabilistic forecasting, retrospectives, standups, backlog refinement, blocker resolution, and agile team coaching.
Why use it?
It turns sprint history into information about delivery trends, uncertainty, forecasts, and possible blockers. It also gives structure to planning, retrospectives, and team-health discussions.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it for sprint planning, velocity analysis, probabilistic forecasting, retrospectives, standups, backlog refinement, blocker resolution, and agile team coaching.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/mrdesign-ww/vault-os/scrum-master
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 mrDesign-ww/vault-os --skill scrum-master
Clone the repo
git clone --depth 1 https://github.com/mrDesign-ww/vault-os

Made for: Claude Code, 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 scrum-master

README.md
[![agentmods](https://agentmods.dev/badge/skills/mrdesign-ww/vault-os/scrum-master/github.svg)](https://agentmods.dev/skills/mrdesign-ww/vault-os/scrum-master)
Your own site
<a href="https://agentmods.dev/skills/mrdesign-ww/vault-os/scrum-master"><img src="https://agentmods.dev/badge/skills/mrdesign-ww/vault-os/scrum-master/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 scrum-master

Your own site · 80×15
<a href="https://agentmods.dev/skills/mrdesign-ww/vault-os/scrum-master"><img src="https://agentmods.dev/badge/skills/mrdesign-ww/vault-os/scrum-master.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 127 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,117 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.
Origin 100% copy Near-identical to another mod 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 $0.00127 $0.02117
Opus 5 $0.00063 $0.01059
Sonnet 5 $0.00025 $0.00423
Haiku 4.5 $0.00013 $0.00212

Measured 8d ago against content hash aa2f4ffcec24, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

scrum-master 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.

The scan reads SKILL.md. This mod also ships 3 executable files (scripts/retrospective_analyzer.py, scripts/sprint_health_scorer.py, scripts/velocity_analyzer.py), 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.

Origin

This is a copy

100% identical to scrum-master — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

shell/claude/skills/scrum-master/SKILL.md · 223 lines

How it starts

The opening of the file, as written. The whole thing — 223 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Scrum Master Expert

Data-driven Scrum Master skill combining sprint analytics, probabilistic forecasting, and team development coaching. The unique value is in the three Python analysis scripts and their workflows — refer to references/ and assets/ for deeper framework detail.


Table of Contents


Analysis Tools & Usage

1. Velocity Analyzer (scripts/velocity_analyzer.py)

Runs rolling averages, linear-regression trend detection, and Monte Carlo simulation over sprint history.

# Text report
python velocity_analyzer.py sprint_data.json --format text

# JSON output for downstream processing
python velocity_analyzer.py sprint_data.json --format json > analysis.json

Outputs: velocity trend (improving/stable/declining), coefficient of variation, 6-sprint Monte Carlo forecast at 50 / 70 / 85 / 95% confidence intervals, anomaly flags with root-cause suggestions.

Validation: If fewer than 3 sprints are present in the input, stop and prompt the user: "Velocity analysis needs at least 3 sprints. Please provide additional sprint data." 6+ sprints are recommended for statistically significant Monte Carlo results.


2. Sprint Health Scorer (scripts/sprint_health_scorer.py)

Scores team health across 6 weighted dimensions, producing an overall 0–100 grade.

Dimension Weight Target
Commitment Reliability 25% >85% sprint goals met
Scope Stability 20% <15% mid-sprint changes
Blocker Resolution 15% <3 days average
Ceremony Engagement 15% >90% participation
Story Completion Distribution 15% High ratio of fully done stories
Velocity Predictability 10% CV <20%
python sprint_health_scorer.py sprint_data.json --format text

Read the full file on GitHub · 223 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 · 223 lines · 127 tokens per session scan A aa2f4ffcec24

Subscribe to this mod's changes

scrum-master is a skill published in the GitHub repository mrDesign-ww/vault-os (2 stars, last pushed yesterday), licensed MIT. It adds 127 tokens to every session and 2,117 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to scrum-master, differing in 0 lines, and is treated as a copy.

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