docs: add the MIT license

[Steel-tech]

The repository went public today with no LICENSE. Default copyright applied, so nobody could legally use, fork, or redistribute it — which quietly undoes the point of publishing.

How it was found

By pointing jig at its own estate. A read-only front-door assessment fanned across eleven StructuPath repositories asked one question of each: could a competent stranger clone this and reach a working state from the front door alone?

Three came back missing a license — jig, agentic-graph-os, spark-lab-infra — with six counterexamples that have one. One repo missing a license is an oversight; three against six is a pattern, and that cross-repo shape is only visible from a fan-out.

For jig specifically the finding was blocking:

No LICENSE file present — licensing posture undeclared. A stranger cloning this repository cannot determine what terms govern use, redistribution, or modification.

I verified it independently of the agent before acting on it (ls LICENSE* empty, gh repo view PUBLIC).

What this does

MIT, following house convention rather than inventing a posture — all six licensed repos in the estate use MIT under StructuPath, and this text is byte-identical to those copies.

The README gains a short License section as well. The finding wasn't only that terms were unset, but that a stranger couldn't determine them; a LICENSE file nobody is pointed to only half-answers that.

Two things worth your eye

Copyright holder is inconsistent across the estate. Four repos say StructuPath, two say StructuPath LLC. I used StructuPath — the majority, and the most recently added. If the LLC should hold copyright, this is a one-line change here and a small normalization pass across the others.

agentic-graph-os is not MIT. Its Cargo.toml declares LicenseRef-Proprietary (with no LICENSE file backing the claim), so the estate is not uniformly permissive. If jig was meant to be proprietary rather than public-permissive, say so and this PR is the wrong move — but it is already a public repo, so the current state is the worst of both.

🤖 Generated with Claude Code

Summary by CodeRabbit

• Documentation
  • Added an MIT License to the project.
  • Updated the README with licensing information and a link to the full license terms.

[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: c1afb2b1-d0d7-496d-80d0-aad94add378f

📥 Commits

Reviewing files that changed from the base of the PR and between 597abb6 and f3a76b9.

📒 Files selected for processing (2)

• LICENSE
• README.md

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📝 Walkthrough

Walkthrough

The project adds a complete MIT License file and a README section that links to the license.

Changes

Project licensing

Layer / File(s)	Summary
Add and document MIT license LICENSE, README.md	The repository adds MIT licensing terms and documents them in a new README License section with a link to LICENSE.

Estimated code review effort: 1 (Trivial) | ~2 minutes

🚥 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 clearly and concisely describes the addition of the MIT license and matches the main changes in the pull request.
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.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch docs/add-license

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