MCP: add templated tool descriptions and tool name prefixing for HTTP/STDIO servers#63
Draft
MCP: add templated tool descriptions and tool name prefixing for HTTP/STDIO servers#63
Conversation
added 2 commits
March 7, 2026 04:57
- Extracted common `$t` template handling into a single `_applyTemplate` helper. - Replaced duplicated `_applyTemplateToDescriptions` implementations with a unified call. - Updated job resolution to use the new helper for both full and description‑only templates. - Minor cleanup of variable names and comments. This refactor improves maintainability and reduces code duplication while preserving existing behavior.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Motivation
fns/fnsMetakeys unchanged and to evaluate tooldescriptionfields as Handlebars templates using current job args.Description
tplDescandtoolPrefixwith defaults and checks in both HTTP and STDIO MCP jobs to enable templated descriptions and optional tool name prefixing._applyTemplateToDescriptions,_prefixToolName,_resolveToolName, and_toToolMetato walk/transform metadata, prefix tool names for exposure, and resolve incoming prefixed names back to internal keys.tools/listresponses to return prefixed metadata produced via_toToolMeta, and updatedtools/callhandling to resolve the incomingparams.nameto the internal function key before invokingargs.fns(including updating thrown/error messages accordingly).fsmapping and pass prefixed metadata toow.server.mcpStdio, while preserving internalargs.fnsmapping and existing error/result normalization logic.Testing