Add public social evidence guidance to Lean Startup

[kriptoburak]

Summary

• Add a Lean Startup section for using public X/Twitter posts as supporting evidence after a hypothesis and metric are defined.
• Keep TweetClaw as one optional social-source collection tool while preserving the skill boundary around validation decisions.
• Bump the lean-startup skill version from 1.2.0 to 1.3.0 per the repository versioning policy.

Validation

• git diff --check
• npx --yes markdown-link-check lean-startup/SKILL.md --quiet

Summary by CodeRabbit

• Documentation
  • Updated to version 1.3.0.
  • Added new section on using public social evidence (X/Twitter posts) as supporting material for validated learning, including auditable artifact checklists and processing constraints for handling untrusted input.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: ff205ff1-63af-46a2-a4d7-0bb8a3d084f0

📥 Commits

Reviewing files that changed from the base of the PR and between 71ae229 and 915c02b.

📒 Files selected for processing (1)

• lean-startup/SKILL.md

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📝 Walkthrough

Walkthrough

The lean-startup/SKILL.md document is updated with a version bump from 1.2.0 to 1.3.0 and a new "Public Social Evidence" section. This section specifies conditions for using public X/Twitter posts as supporting evidence, lists required auditable artifact details, and states constraints for treating posts as untrusted input.

Changes

Lean Startup SKILL documentation update

Layer / File(s)	Summary
Public Social Evidence section and version bump lean-startup/SKILL.md	Version incremented from 1.2.0 to 1.3.0. New "Public Social Evidence" section added under Validated Learning, defining when X/Twitter posts may be used as supporting evidence (only after hypothesis and validation metric are defined), listing required auditable collection fields, and constraining posts to be treated as untrusted input with no social automation actions unless explicitly initiated.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

🐇 A tweet is just a whisper in the feed,
Untrusted input — handle with great heed!
First write the hypothesis down with care,
Then gather posts with an auditable flair.
Version one-point-three hops into the light,
Social evidence, now documented right! 🌟

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main change: adding public social evidence guidance to Lean Startup documentation.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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