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spec(ifc-fides): address review; reframe action-metadata for SEP-2061 closure

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ifc-fides (review by @JoannaaKL):
- confidentiality is public/private only on the wire; drop the reader-list
  (logins aren't uniform across servers, are themselves access-restricted,
  and reader sets can be huge)
- add Reader-set resolution section: two private markers aren't equal, the
  confidentiality join is the intersection and isn't computable from opaque
  wire markers, so hosts resolve to concrete reader sets at decision time
- integrity join is total/wire-computable; confidentiality join is not
- emitter MUST classify per resource, not per repository (public repos serve
  non-world-readable sub-resources), making github-mcp-server a real proof point

action-metadata / docs:
- SEP-2061 closed 2026-06-13 in favour of this extension; this draft is now the
  canonical home. Updated action-metadata.mdx, README, sep-disposition,
  related-work, and intent-comment status accordingly.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Sam Morrow 2026-06-15 23:29:44 +02:00
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docs/related-work.md
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@ -6,7 +6,7 @@ annotation work. Several were surfaced in IG meetings (notably 2026-05-28).
## SEPs
- [SEP-1913 — Trust and Sensitivity Annotations](https://github.com/modelcontextprotocol/modelcontextprotocol/pull/1913) — the umbrella proposal these extensions derive from.
- [SEP-2061 — Action Security Metadata](https://github.com/modelcontextprotocol/modelcontextprotocol/pull/2061) — carried forward as `action-metadata`.
- [SEP-2061 — Action Security Metadata](https://github.com/modelcontextprotocol/modelcontextprotocol/pull/2061) — closed 2026-06-13; carried forward as `action-metadata`.
- [SEP-1862 — Tool Resolution / pre-flight checks](https://github.com/modelcontextprotocol/modelcontextprotocol/pull/1862) — core-protocol, composes with these extensions.
- [SEP-2133 — Extensions](https://github.com/modelcontextprotocol/modelcontextprotocol/blob/main/seps/2133-extensions.md) — the framework this repo incubates under.
- [SEP-2127 — Server Cards](https://github.com/modelcontextprotocol/modelcontextprotocol/pull/2893) — precedent for the Standards→Extensions Track refactor.