Raven MCP
Copyright (c) 2026 Andrew Cunliffe

Licensed under the MIT License — see LICENSE for full text.

This is a personal open-source project. It is not endorsed by, affiliated with,
or supported by Intuit Inc. or any other company referenced in the source data.

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Third-party sources referenced in src/data/
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Raven's knowledge base paraphrases, summarizes, and references the work of many
authors and organizations. Source URLs are embedded in each entry's `sources`
field. Several upstream sources carry their own licenses — listed below in
descending order of permissiveness.

Permissive / public-domain sources
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- Gestalt principles — early-20th-century academic work, public domain.
  Descriptions in Raven are original prose.

- W3C Web Content Accessibility Guidelines (WCAG 2.1 / 2.2)
  https://www.w3.org/WAI/standards-guidelines/wcag/
  Licensed under the W3C Document License. Permits redistribution and
  derivative works with attribution.

- GOV.UK Style Guide and GOV.UK Service Standard
  https://www.gov.uk/guidance/style-guide
  https://www.gov.uk/service-manual/service-standard
  Contains public sector information licensed under the Open Government
  Licence v3.0: https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/

- Shopify Polaris (component library)
  https://polaris.shopify.com — Polaris code is MIT-licensed. Content
  documentation is paraphrased as reference; consult Shopify for the
  authoritative version.

Attribution-with-conditions sources
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- Nielsen's 10 Usability Heuristics, Nielsen Norman Group
  https://www.nngroup.com/articles/ten-usability-heuristics/
  Heuristic names are short factual labels; Raven's descriptions are original
  paraphrase under fair-use commentary. NN/g is the canonical source for
  production use.

- Laws of UX, Jon Yablonski
  https://lawsofux.com — licensed under CC BY-NC-ND 4.0.
  Raven references the named laws (Fitts's Law, Miller's Law, Hick's Law,
  etc. — which are public academic concepts) and provides original
  descriptions. No prose from lawsofux.com is reproduced. The named "21
  Laws of UX" framing and any Yablonski-authored summaries are the
  property of the original author; consult lawsofux.com for the canonical
  versions.

- Mailchimp Content Style Guide
  https://styleguide.mailchimp.com — licensed under CC BY-NC 4.0.
  Raven's mailchimp.json is a paraphrased reference to the publicly
  documented voice attributes, tone shifts, and content patterns.
  Consult the original for authoritative or commercial use.

- Atlassian Design System
  https://atlassian.design — content paraphrased as reference; no
  Atlassian copy is reproduced verbatim.

- This Is Service Design Doing (Stickdorn, Hormess, Lawrence, Schneider),
  O'Reilly 2018 — five service-design principles are referenced as
  concepts; descriptions are original.

- Lynn Shostack, "How to Design a Service" / "Designing Services That
  Deliver" (Harvard Business Review, 1984) — service-blueprinting concept
  is referenced; descriptions are original.

Frameworks (concept-only, no copyrighted prose)
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- HEART framework (Kerry Rodden, Hilary Hutchinson, Xin Fu — Google, 2010)
- AARRR / Pirate Metrics (Dave McClure, 500 Startups, 2007)
- North Star Metric (Sean Ellis / Amplitude)
- RICE prioritization (Intercom)
- OKRs (Andy Grove / John Doerr)
- Carlzon's Moments of Truth (Jan Carlzon, 1987)

These are methodological frameworks; concepts are not copyrightable.
Descriptions in Raven are original.

Design tokens
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Token values (color hex codes, type scales, spacing units, motion timings)
for the design systems referenced in src/data/tokens/ are functional values
extracted from publicly accessible design-system documentation. Functional
design values are not protectable expression. Brand names are used
nominatively to label which system a token set is styled like, not to
suggest endorsement.

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Removing a source
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If you are a rights-holder and would like a source removed, amended, or
attributed differently, file an issue at:
https://github.com/rhinocap/raven-mcp/issues