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chore(conformance): meeting requirements for tier 1 - #1087

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chore/tier1-conformance-requirements
Jul 30, 2026
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chore(conformance): meeting requirements for tier 1#1087
alexhancock merged 2 commits into
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chore/tier1-conformance-requirements

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@alexhancock alexhancock commented Jul 29, 2026

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Closes the remaining SEP-1730 Tier 1 gaps. This PR fills the documentation and governance requirements.

Documentation (README.md)

Documents the previously-missing features, each with an example:

  • Tools — image / audio / embedded-resource results, plus an error-handling section (tool-level CallToolResult::error vs. protocol Err(McpError))
  • Resources — reading binary (blob) content
  • Prompts — image and embedded-resource content
  • Elicitation — new section: form mode, schema validation, defaults, enum values, URL mode, response notification
  • Ping — documented as auto-answered by the default handlers
  • Transports — new section (stdio, child process, Streamable HTTP, worker), with an honest note that SSE is the response-stream framing inside Streamable HTTP rather than a separate transport
  • Pagination, Capability & Protocol Version Negotiation, JSON Schema 2020-12
  • Table of Contents updated

Governance

  • VERSIONING.md — SemVer scheme, what counts as a breaking change, MSRV policy, how breaking changes are communicated (release-plz + Conventional Commits + cargo-semver-checks).
  • DEPENDENCY_POLICY.md — dependency selection, the existing Dependabot automation, review/merge and security-update handling, MSRV.

Roadmap

  • ROADMAP.md refreshed to reflect 100% dated conformance on both 2025-11-25 and 2026-07-28, and the shipped v3.0.x stable release.

@alexhancock
alexhancock requested a review from a team as a code owner July 29, 2026 21:27
@github-actions github-actions Bot added the T-documentation Documentation improvements label Jul 29, 2026
Comment thread README.md Outdated
Comment thread README.md Outdated
Comment thread README.md Outdated
Comment thread README.md Outdated
Comment thread README.md Outdated
Comment thread README.md Outdated
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Comment thread VERSIONING.md Outdated
@alexhancock
alexhancock force-pushed the chore/tier1-conformance-requirements branch from 25c3ab5 to 7bf8d25 Compare July 30, 2026 14:30
@alexhancock
alexhancock merged commit 51c8ee6 into main Jul 30, 2026
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@alexhancock
alexhancock deleted the chore/tier1-conformance-requirements branch July 30, 2026 15:36
@github-actions github-actions Bot mentioned this pull request Jul 30, 2026
howardjohn pushed a commit to agentgateway/agentgateway that referenced this pull request Jul 31, 2026
Bump to latest stable release
https://github.com/modelcontextprotocol/rust-sdk/releases/tag/rmcp-v3.1.0

```
Added
classify authorization-required errors (modelcontextprotocol/rust-sdk#1056)
add strict stateless protocol metadata validation (modelcontextprotocol/rust-sdk#1091)
SEP-2260 stream-based enforcement of client receive-side request association (modelcontextprotocol/rust-sdk#1055)
Fixed
(model) decode metadata-bearing input-required results affecting mrtr (modelcontextprotocol/rust-sdk#1097)
require metadata for modern HTTP requests (modelcontextprotocol/rust-sdk#1089)
honor supported_protocol_versions when negotiating initialize (modelcontextprotocol/rust-sdk#1093)
Other
document the ping utility with examples (modelcontextprotocol/rust-sdk#1106)
complete Tier 1 feature docs and finalize roadmap (modelcontextprotocol/rust-sdk#1101)
(conformance) meeting requirements for tier 1 (modelcontextprotocol/rust-sdk#1087)
```

Signed-off-by: Filinto Duran <1373693+filintod@users.noreply.github.com>
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