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fix: only load GitHub MCP server when its tools are allowed (#124)

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* fix: only load GitHub MCP server when its tools are allowed

- Add allowedTools parameter to prepareMcpConfig
- Check for mcp__github__ and mcp__github_file_ops__ tool prefixes
- Only include MCP servers when their tools are in allowed_tools
- Maintain backward compatibility when allowed_tools is not specified
- Update tests to reflect the new conditional loading behavior

This optimizes resource usage by not loading unnecessary MCP servers
when their tools are not allowed in the configuration.

Co-authored-by: ashwin-ant <ashwin-ant@users.noreply.github.com>

* fix: always load github_file_ops server regardless of allowed_tools

- Only apply conditional loading to the github MCP server
- Always load github_file_ops server as it contains essential tools
- Update tests to reflect this behavior

Co-authored-by: ashwin-ant <ashwin-ant@users.noreply.github.com>

* refactor: move allowedTools/disallowedTools parsing to parseGitHubContext

- Change allowedTools and disallowedTools from string to string[] in ParsedGitHubContext type
- Parse comma-separated environment variables into arrays in parseGitHubContext function
- Update create-prompt and install-mcp-server to use pre-parsed arrays
- Update all affected test files to use array syntax
- Eliminate duplicate parsing logic across the codebase

* style: apply prettier formatting

---------

Co-authored-by: claude[bot] <209825114+claude[bot]@users.noreply.github.com>
Co-authored-by: ashwin-ant <ashwin-ant@users.noreply.github.com>
This commit is contained in:
Ashwin Bhat
2025-06-04 11:56:56 -07:00
committed by GitHub
parent 94c0c31c1b
commit 699aa26b41
10 changed files with 159 additions and 72 deletions
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14
src/github/context.ts
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@@ -28,8 +28,8 @@ export type ParsedGitHubContext = {
inputs: {
triggerPhrase: string;
assigneeTrigger: string;
allowedTools: string;
disallowedTools: string;
allowedTools: string[];
disallowedTools: string[];
customInstructions: string;
directPrompt: string;
baseBranch?: string;
@@ -52,8 +52,14 @@ export function parseGitHubContext(): ParsedGitHubContext {
inputs: {
triggerPhrase: process.env.TRIGGER_PHRASE ?? "@claude",
assigneeTrigger: process.env.ASSIGNEE_TRIGGER ?? "",
allowedTools: process.env.ALLOWED_TOOLS ?? "",
disallowedTools: process.env.DISALLOWED_TOOLS ?? "",
allowedTools: (process.env.ALLOWED_TOOLS ?? "")
.split(",")
.map((tool) => tool.trim())
.filter((tool) => tool.length > 0),
disallowedTools: (process.env.DISALLOWED_TOOLS ?? "")
.split(",")
.map((tool) => tool.trim())
.filter((tool) => tool.length > 0),
customInstructions: process.env.CUSTOM_INSTRUCTIONS ?? "",
directPrompt: process.env.DIRECT_PROMPT ?? "",
baseBranch: process.env.BASE_BRANCH,