Agent skill

Tool Foundation Sprint Brief

by product-on-purpose in product-on-purpose/pm-skills

Pre-sprint brief that locks scope, the decision the sprint must unlock, team and role assignments, logistics, inputs to bring, and success criteria before Day 1 of a Foundation Sprint.

Apache-2.0Auto-check passed

Install Tool Foundation Sprint Brief

skills CLI
$ npx skills add product-on-purpose/pm-skills --skill tool-foundation-sprint-brief -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install product-on-purpose/pm-skills tool-foundation-sprint-brief --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/product-on-purpose/pm-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/tool-foundation-sprint-brief .claude/skills/tool-foundation-sprint-brief && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
tool-foundation-sprint-brief
GitHub stars
716
Token cost
~1.9k tokens
SKILL.md length
916 words
Files
4 (incl. references)
Skills in repo
68
Repo updated
First seen
Licence
Apache-2.0

At a glance

Pre-sprint brief that locks scope, the decision the sprint must unlock, team and role assignments, logistics, inputs to bring, and success criteria before Day 1 of a Foundation Sprint.

  • Works in 6 steps: Initiative statement and stakes: one… → Decision the sprint must unlock: the… → Team roster with role assignments: who… → …
  • SKILL.md covers When to Use, When NOT to Use, What This Skill Produces and Inference Inputs, plus 5 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Tool Foundation Sprint Brief is an agent skill from product-on-purpose/pm-skills. Pre-sprint brief that locks scope, the decision the sprint must unlock, team and role assignments, logistics, inputs to bring, and success criteria before Day 1 of a Foundation Sprint. Use after the readiness verdict is Go and before the sprint begins. Produces a one-page artifact the team and Decider sign off on as the contract for the next two days.

Its SKILL.md is about 1.9k tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files, including reference files (for example `HISTORY.md`, `references/EXAMPLE.md` and `references/TEMPLATE.md`).

The repository describes itself as: 68 plug-and-play, best-practice product management skills for AI agents: 30 Triple Diamond phase + 11 foundation + 12 utility + 15 tool (Foundation Sprint + Design Sprint). Plus… The licence is Apache-2.0.

Example prompts

  • “/tool-foundation-sprint-brief”

Workflow steps

6 steps, taken from the first numbered list in SKILL.md.

  1. Initiative statement and stakes: one paragraph naming what the team is sprinting on and why a wrong direction would be costly.
  2. Decision the sprint must unlock: the open strategic question the sprint resolves. Single sentence.
  3. Team roster with role assignments: who is in the room and what role each person plays per section of the sprint.
  4. Logistics plan: dates, hours, location, format (in-person, remote, hybrid), tools, daily rhythm.
  5. Existing inputs to bring: the research, customer examples, competitor notes, metrics, and constraints the team should reference during the…
  6. Readiness reaffirmation: a final check that the Go verdict from tool-foundation-sprint-readiness still holds.

What it can do on your machine

Read from SKILL.md and the folder at commit 1cef1a9. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Tool Foundation Sprint Brief loads about 1.9k tokens when it runs, and up to ~3.8k if it reads all its reference files. Until then it costs about 96 tokens; SKILL.md has 916 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~96
When it runs · the whole SKILL.md, loaded when a task matches
~1.9k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~3.8k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from product-on-purpose/pm-skills at commit 1cef1a9, republished under its Apache-2.0 licence (© product-on-purpose). 916 words, ~1,927 tokens.

Download SKILL.mdSave it as .claude/skills/tool-foundation-sprint-brief/SKILL.md (or your agent's skills folder). This skill also uses 3 other files; get the full folder from GitHub.
name
tool-foundation-sprint-brief
description
Pre-sprint brief that locks scope, the decision the sprint must unlock, team and role assignments, logistics, inputs to bring, and success criteria before Day 1 of a Foundation Sprint. Use after the readiness verdict is Go and before the sprint begins. Produces a one-page artifact the team and Decider sign off on as the contract for the next two days.
license
Apache-2.0
metadata.classification
tool
metadata.version
1.0.0
metadata.updated
2026-07-04
metadata.tool
foundation-sprint
metadata.move
brief
metadata.category
coordination
metadata.frameworks
foundation-sprint, click
metadata.timebox_minutes
60
metadata.roles
facilitator, pm, decider
<!-- PM-Skills | https://github.com/product-on-purpose/pm-skills | Apache 2.0 -->

Foundation Sprint Brief

Produce the one-page brief that aligns the team on scope, decision target, participants, logistics, and success criteria before Day 1 begins. A well-built brief prevents Day 1 from opening with re-litigation of why-are-we-here; a missing or vague brief almost guarantees it.

Family contract: docs/reference/skill-families/foundation-sprint-skills-contract.md. This skill is a member of foundation-sprint-skills.

When to Use

  • The readiness verdict from tool-foundation-sprint-readiness is Go (or Conditional Go with preconditions cleared).
  • The sprint has dates blocked on calendars and you need the artifact that names what the sprint is for.
  • The team has prep activities scheduled and you need a written reference for what to bring.
  • A skeptical exec wants to know "what is the team doing for two days?" and you need an answer that fits on one page.

When NOT to Use

  • The sprint has already started. The brief is a prep artifact, not an in-sprint deliverable. If Day 1 is happening, run tool-foundation-sprint-basics instead.
  • The readiness verdict is Wait. The brief cannot fix an unready team; close the preconditions first, then re-run readiness, then invoke this skill.
  • The team wants a strategy document. The brief is internal prep, not a stakeholder deliverable. If a stakeholder document is needed, that is a downstream artifact.
  • The brief threatens to become a multi-page strategic document. Stop and reframe: the canonical brief is one page.

What This Skill Produces

A single bundled artifact with six sections:

  1. Initiative statement and stakes: one paragraph naming what the team is sprinting on and why a wrong direction would be costly.
  2. Decision the sprint must unlock: the open strategic question the sprint resolves. Single sentence.
  3. Team roster with role assignments: who is in the room and what role each person plays per section of the sprint.
  4. Logistics plan: dates, hours, location, format (in-person, remote, hybrid), tools, daily rhythm.
  5. Existing inputs to bring: the research, customer examples, competitor notes, metrics, and constraints the team should reference during the sprint.
  6. Readiness reaffirmation: a final check that the Go verdict from tool-foundation-sprint-readiness still holds.

See references/TEMPLATE.md for the canonical structure and references/EXAMPLE.md for the Brainshelf book-catalog brief.

Inference Inputs

InputWhat the skill does with it
Readiness verdict and recommendations (from tool-foundation-sprint-readiness)Pulls the recommended attendees, preconditions, and pre-sprint activities into the brief; flags any precondition that has not been closed
Initiative descriptionCompresses into one paragraph for the Initiative Statement section
Team rosterMaps people to the required Foundation Sprint roles (Decider, Facilitator, PM, Design, Engineering, Customer Expert)
Logistics constraintsProduces the dates/hours/location/format/tools matrix; flags any constraint that would force the sprint to extend beyond two days
(Optional) Skeptical-exec talking pointsTightens the Stakes paragraph to address why-now and why-this concerns

Brief Length Discipline

The brief MUST fit on one page (or one screen). The skill enforces this through structural choices, not raw character counts:

  • Initiative Statement: one paragraph, four sentences maximum.
  • Decision the sprint must unlock: one sentence.
  • Team Roster: table with one row per person.
  • Logistics: table.
  • Inputs to Bring: bulleted list, five items maximum.
  • Readiness Reaffirmation: checklist.

If the brief expands beyond this scope, the sprint is being over-engineered before it starts. The fix is not a longer brief; the fix is a clearer decision target.

Show full SKILL.md (379 more words)Show less

Common Pitfalls

  • Over-engineering the brief. The brief is a prep artifact, not a strategy doc. If it has an executive summary, an appendix, or a "background" section longer than one paragraph, it has drifted.
  • Treating the brief as a deliverable to stakeholders. Stakeholders do not read the brief; they read the Founding Hypothesis at the end. The brief is for the team. Sharing it publicly invites pre-sprint debate, which the sprint is supposed to resolve.
  • Vague decision target. "We will figure out our strategy" is not a decision. "We will commit to a top bet between [option A] and [option B]" is.
  • Logistics drift. "We'll figure out dates" or "we'll meet hybrid sometimes" telegraphs that the team has not actually committed to the sprint. Either dates and format are locked, or the readiness verdict was wrong.
  • Skipping readiness reaffirmation. The readiness verdict was a snapshot. If a precondition has slipped or the Decider's availability has changed since readiness, the brief needs to surface that, not paper over it.

Canonical Sources

  • Character Capital. "Foundation Sprint guide." Section on pre-sprint preparation and team scoping.
  • Knapp, J., and Zeratsky, J. Click: How to Make What People Want. Pre-sprint prep recommendations.
  • pm-skills foundation-meeting-brief precedent: brief-structure pattern adapted for the strategic context of a Foundation Sprint rather than a meeting.

Cross-Skill Usage

Prerequisites: tool-foundation-sprint-readiness. The brief expects the readiness output as its primary input. When prerequisites is honored, the brief inherits the readiness verdict, attendee recommendations, and pre-sprint activities; the skill then refines and commits them.

If the team has done equivalent prep without running the readiness skill explicitly (e.g., experienced sprint facilitator who knows the readiness criteria), the brief skill can be invoked directly. In that case, the skill body prompts the team to confirm the readiness criteria are met before generating the brief.

Next invocation in the sprint: tool-foundation-sprint-basics on Day 1 morning.

Decider Checkpoint

This skill ends with a Decider Checkpoint in references/TEMPLATE.md. The Decider signs off on scope (the decision target), team (the roster and role assignments), success criteria (what makes the sprint successful or not), and the explicit tradeoff that the sprint will force a top bet rather than preserve all directions. Without sign-off, the brief is advisory; with sign-off, it is the contract for the next two days.

© product-on-purpose, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 3 other files (references) in skills/tool-foundation-sprint-brief of product-on-purpose/pm-skills.

  • SKILL.md
  • HISTORY.md
  • references/EXAMPLE.md
  • references/TEMPLATE.md

Open the folder on GitHubat commit 1cef1a9

Compare with similar skills

Tool Foundation Sprint Brief next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Tool Foundation Sprint Brief compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Tool Foundation Sprint Brief this skillproduct-on-purpose/pm-skills716—~1.9kAutomated safety check: PassApache-2.0
Sprint Briefmohitagw15856/pm-claude-skills1.4k—~1.3kAutomated safety check: PassMIT
Briefalirezarezvani/claude-skills28k—~967Automated safety check: PassMIT
Sprint Planphuryn/pm-skills27k—~590Automated safety check: PassMIT
Sprint Status SnapshotDonchitos/Claude-Code-Game-Studios26k—~3kAutomated safety check: PassMIT
Sprint Plan BuilderDonchitos/Claude-Code-Game-Studios26k—~4.1kAutomated safety check: PassMIT

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Questions about Tool Foundation Sprint Brief

What does Tool Foundation Sprint Brief do?

Pre-sprint brief that locks scope, the decision the sprint must unlock, team and role assignments, logistics, inputs to bring, and success criteria before Day 1 of a Foundation Sprint. Tool Foundation Sprint Brief is an agent skill from product-on-purpose/pm-skills. Pre-sprint brief that locks scope, the decision the sprint must unlock, team and role assignments, logistics, inputs to bring, and success criteria before Day 1 of a Foundation Sprint.

How do I install Tool Foundation Sprint Brief in Claude Code?

Run `npx skills add product-on-purpose/pm-skills --skill tool-foundation-sprint-brief -a claude-code`. Or copy the skill folder (skills/tool-foundation-sprint-brief in product-on-purpose/pm-skills) into .claude/skills/tool-foundation-sprint-brief in your project. Claude Code loads it when a task matches its description.

How do I install Tool Foundation Sprint Brief in Codex?

Run `npx skills add product-on-purpose/pm-skills --skill tool-foundation-sprint-brief -a codex`. Or copy the skill folder (skills/tool-foundation-sprint-brief in product-on-purpose/pm-skills) into .agents/skills/tool-foundation-sprint-brief in your project. Codex loads it when a task matches its description.

Can I use Tool Foundation Sprint Brief in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add product-on-purpose/pm-skills --skill tool-foundation-sprint-brief -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/tool-foundation-sprint-brief, .gemini/skills/tool-foundation-sprint-brief, .github/skills/tool-foundation-sprint-brief and .opencode/skills/tool-foundation-sprint-brief in your project.

What does Tool Foundation Sprint Brief need to run?

SKILL.md names no scripts, command-line tools or credentials: Tool Foundation Sprint Brief is instructions for the agent only.

Does Tool Foundation Sprint Brief access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Tool Foundation Sprint Brief safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Tool Foundation Sprint Brief use?

Tool Foundation Sprint Brief is published under the Apache-2.0 licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Tool Foundation Sprint Brief use?

About 1.9k tokens (SKILL.md is roughly 7.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 1.8k tokens, read only when the agent opens those files.

What are the alternatives to Tool Foundation Sprint Brief?

Skills that share tags, products or a category with Tool Foundation Sprint Brief: Sprint Brief (mohitagw15856/pm-claude-skills, 1.4k stars), Brief (alirezarezvani/claude-skills, 28k stars), Sprint Plan (phuryn/pm-skills, 27k stars) and Sprint Status Snapshot (Donchitos/Claude-Code-Game-Studios, 26k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Tool Foundation Sprint Brief?

product-on-purpose (a GitHub organization) maintains it in product-on-purpose/pm-skills, which has 716 GitHub stars. The repository holds 68 skills in this directory. The repository was last updated on October 8, 2026.

Source: product-on-purpose/pm-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.