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Agent skill

Validation Frameworks

by slgoodrich in slgoodrich/agents

Problem and solution validation methodologies, assumption testing, and MVP experiments.

Custom licenceAuto-check passedProduct & Project Management

Install Validation Frameworks

skills CLI
$ npx skills add slgoodrich/agents --skill validation-frameworks -a claude-code

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

GitHub CLI
$ gh skill install slgoodrich/agents validation-frameworks --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/slgoodrich/agents.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/ai-pm-copilot/skills/validation-frameworks .claude/skills/validation-frameworks && 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
validation-frameworks
GitHub stars
138
Token cost
~3.6k tokens
SKILL.md length
1,673 words
Files
6 (incl. references, assets)
Skills in repo
19
Repo updated
First seen
Licence
Custom licence

At a glance

Problem and solution validation methodologies, assumption testing, and MVP experiments.

  • Works in 9 steps: Identify Assumptions → Prioritize Assumptions to Test → Design Validation Experiments → …
  • Validating a problem worth solving
  • SKILL.md covers When to Use This Skill, Core Principle: Reduce Risk…, The Validation Spectrum and Problem Validation vs.…, plus 6 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Validation Frameworks is an agent skill from slgoodrich/agents. Problem and solution validation methodologies, assumption testing, and MVP experiments. Use when validating a problem worth solving, testing solution assumptions, designing MVP experiments, or deciding whether to pivot or persevere. Trigger on: 'validate my idea', 'test my assumptions', 'design an MVP experiment', 'should I pivot', 'is this problem worth solving'.

Its SKILL.md is about 3.6k tokens, which your agent loads only when the skill is triggered. The skill folder holds 7 other files, including reference files and assets (for example `assets/problem-validation-canvas.md`, `assets/solution-validation-checklist.md` and `assets/validation-experiment-template.md`).

It sits in Product & Project Management. The repository describes itself as: AI PM Workflows for Claude Code.

When your agent uses it

  • Validating a problem worth solving
  • Testing solution assumptions
  • Designing MVP experiments
  • Deciding whether to pivot

Example prompts

  • “validate my idea”
  • “test my assumptions”
  • “design an MVP experiment”
  • “/validation-frameworks”

Workflow steps

9 steps, taken from the step headings in SKILL.md.

  1. Identify Assumptions
  2. Prioritize Assumptions to Test
  3. Design Validation Experiments
  4. Run the Experiment
  5. Fake Validation
  6. Analysis Paralysis
  7. Confirmation Bias
  8. Vanity Validation
  9. Building Instead of Validating

What it can do on your machine

Read from SKILL.md and the folder at commit 3b5835b. 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

Validation Frameworks loads about 3.6k tokens when it runs, and up to ~12k if it reads all its reference files. Until then it costs about 97 tokens; SKILL.md has 1,673 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~97
When it runs · the whole SKILL.md, loaded when a task matches
~3.6k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~12k

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

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 1,673 words (~3,592 tokens).

“Frameworks for validating problems, solutions, and product assumptions before committing to full development.”

— opening of SKILL.md by slgoodrich, Custom licence
name
validation-frameworks

Read the full SKILL.md on GitHub

Files

SKILL.md and 5 other files (references, assets) in plugins/ai-pm-copilot/skills/validation-frameworks of slgoodrich/agents.

  • SKILL.md
  • assets/problem-validation-canvas.md
  • assets/solution-validation-checklist.md
  • assets/validation-experiment-template.md
  • references/assumption-testing-methods.md
  • references/lean-startup-validation.md

Open the folder on GitHubat commit 3b5835b

Compare with similar skills

Validation Frameworks 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.

Validation Frameworks compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Validation Frameworks this skillslgoodrich/agents138—~3.6kAutomated safety check: PassCustom licence
User Story Writerdeanpeters/Product-Manager-Skills7.2k2 repos~2.9kAutomated safety check: PassCustom licence
Game Changing FeaturesopenstatusHQ/data-table-filters2.3k3 repos~2.1kAutomated safety check: PassMIT
CCPM Project Managementautomazeio/ccpm8.4k—~1.1kAutomated safety check: PassMIT
Convex Create Componentspokvulcan/poker-planning1148 repos~2.6kAutomated safety check: PassMIT
Self Improving Agentfarm-fe/farm5.6k2 repos~3.3kAutomated safety check: NotesMIT

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Categories

Questions about Validation Frameworks

What does Validation Frameworks do?

Problem and solution validation methodologies, assumption testing, and MVP experiments. Validation Frameworks is an agent skill from slgoodrich/agents. Problem and solution validation methodologies, assumption testing, and MVP experiments.

When should I use Validation Frameworks?

Validation Frameworks fits situations like: validating a problem worth solving; testing solution assumptions; designing MVP experiments; deciding whether to pivot.

How do I install Validation Frameworks in Claude Code?

Run `npx skills add slgoodrich/agents --skill validation-frameworks -a claude-code`. Or copy the skill folder (plugins/ai-pm-copilot/skills/validation-frameworks in slgoodrich/agents) into .claude/skills/validation-frameworks in your project. Claude Code loads it when a task matches its description.

How do I install Validation Frameworks in Codex?

Run `npx skills add slgoodrich/agents --skill validation-frameworks -a codex`. Or copy the skill folder (plugins/ai-pm-copilot/skills/validation-frameworks in slgoodrich/agents) into .agents/skills/validation-frameworks in your project. Codex loads it when a task matches its description.

Can I use Validation Frameworks 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 slgoodrich/agents --skill validation-frameworks -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/validation-frameworks, .gemini/skills/validation-frameworks, .github/skills/validation-frameworks and .opencode/skills/validation-frameworks in your project.

What does Validation Frameworks need to run?

SKILL.md names no scripts, command-line tools or credentials: Validation Frameworks is instructions for the agent only.

Does Validation Frameworks 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 Validation Frameworks 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 Validation Frameworks use?

Validation Frameworks has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Validation Frameworks use?

About 3.6k tokens (SKILL.md is roughly 14k 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 8.4k tokens, read only when the agent opens those files.

What are the alternatives to Validation Frameworks?

Skills that share tags, products or a category with Validation Frameworks: User Story Writer (deanpeters/Product-Manager-Skills, 7.2k stars), Game Changing Features (openstatusHQ/data-table-filters, 2.3k stars), CCPM Project Management (automazeio/ccpm, 8.4k stars) and Convex Create Component (spokvulcan/poker-planning, 114 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Validation Frameworks?

slgoodrich (a GitHub user) maintains it in slgoodrich/agents, which has 138 GitHub stars. The repository holds 19 skills in this directory. The repository was last updated on April 10, 2026.

Source: slgoodrich/agents on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.