Define well-known URI schemes and naming patterns for skill resources#53
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Survey 6 existing URI patterns (NimbleBrain, skilljack-mcp, skills-over-mcp, FastMCP 3.0, Cloudflare well-known RFC, SEP-2076) and propose a recommended skill:// URI convention for MCP skill resources. Cross-reference from approaches.md Approach 6.
olaservo
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Mar 7, 2026
Address PR review feedback: note that versioning is intentionally deferred, and recommend clients provide a read_resource tool with server name for disambiguation when multiple servers expose the same skill URI.
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Replace PR #53 links with relative references to the now-merged skill-uri-scheme.md document. Co-Authored-By: Claude Opus 4.6 <[email protected]>
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* Update skill-meta-keys.md to reference merged URI scheme doc Replace PR #53 links with relative references to the now-merged skill-uri-scheme.md document. Co-Authored-By: Claude Opus 4.6 <[email protected]> * Refactor skilljack-mcp section and update notes on `_meta` keys for clarity * Refocus _meta doc as scoping framework, not key recommendations Address PR feedback: remove recommended keys that duplicate frontmatter or belong at the plugin/distribution layer. Change namespace to io.modelcontextprotocol.skills/. Establish scoping principles for when _meta is appropriate vs frontmatter, annotations, or distribution-layer mechanisms. Co-Authored-By: Claude Opus 4.6 (1M context) <[email protected]> * Add decision record: _meta reserved for MCP-transport concerns Records the decision from PR #60 review that skill-level semantics stay in frontmatter, _meta is for MCP-transport-specific metadata, and no specific keys are recommended yet. Co-Authored-By: Claude Opus 4.6 (1M context) <[email protected]> --------- Co-authored-by: Claude Opus 4.6 <[email protected]>
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* Update skill-meta-keys.md to reference merged URI scheme doc Replace PR #53 links with relative references to the now-merged skill-uri-scheme.md document. Co-Authored-By: Claude Opus 4.6 <[email protected]> * Refactor skilljack-mcp section and update notes on `_meta` keys for clarity * Refocus _meta doc as scoping framework, not key recommendations Address PR feedback: remove recommended keys that duplicate frontmatter or belong at the plugin/distribution layer. Change namespace to io.modelcontextprotocol.skills/. Establish scoping principles for when _meta is appropriate vs frontmatter, annotations, or distribution-layer mechanisms. Co-Authored-By: Claude Opus 4.6 (1M context) <[email protected]> * Add decision record: _meta reserved for MCP-transport concerns Records the decision from PR #60 review that skill-level semantics stay in frontmatter, _meta is for MCP-transport-specific metadata, and no specific keys are recommended yet. Co-Authored-By: Claude Opus 4.6 (1M context) <[email protected]> --------- Co-authored-by: Claude Opus 4.6 <[email protected]>
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Closes #44
Adds
docs/skill-uri-scheme.md— a proposal for standardizing skill resource URI schemes in the MCP Skills Convention.Survey
Surveys 6 existing patterns with pros/cons for each:
skill://skill:///collectionskill:///document/pathskill://https://Key finding: all four MCP-native implementations independently converged on
skill://as the URI scheme.Proposed Convention
skill://skill://skill-name/SKILL.md(SKILL.md explicit, matching Agent Skills spec directory model)skill://my-skill/references/GUIDE.md)skill://{skill_name}/SKILL.mdandskill://{skill_name}/{+path}Example URIs
skill://git-workflow/SKILL.mdskill://code-review/references/SECURITY.mdskill://pdf-processing/scripts/extract.pyAcceptance Criteria from #44