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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
test/create-prompt.test.ts
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@@ -652,7 +652,7 @@ describe("buildAllowedToolsString", () => {
});
test("should append custom tools when provided", () => {
const customTools = "Tool1,Tool2,Tool3";
const customTools = ["Tool1", "Tool2", "Tool3"];
const result = buildAllowedToolsString(customTools);
// Base tools should be present
@@ -683,7 +683,7 @@ describe("buildDisallowedToolsString", () => {
});
test("should append custom disallowed tools when provided", () => {
const customDisallowedTools = "BadTool1,BadTool2";
const customDisallowedTools = ["BadTool1", "BadTool2"];
const result = buildDisallowedToolsString(customDisallowedTools);
// Base disallowed tools should be present
@@ -701,8 +701,8 @@ describe("buildDisallowedToolsString", () => {
});
test("should remove hardcoded disallowed tools if they are in allowed tools", () => {
const customDisallowedTools = "BadTool1,BadTool2";
const allowedTools = "WebSearch,SomeOtherTool";
const customDisallowedTools = ["BadTool1", "BadTool2"];
const allowedTools = ["WebSearch", "SomeOtherTool"];
const result = buildDisallowedToolsString(
customDisallowedTools,
allowedTools,
@@ -720,7 +720,7 @@ describe("buildDisallowedToolsString", () => {
});
test("should remove all hardcoded disallowed tools if they are all in allowed tools", () => {
const allowedTools = "WebSearch,WebFetch,SomeOtherTool";
const allowedTools = ["WebSearch", "WebFetch", "SomeOtherTool"];
const result = buildDisallowedToolsString(undefined, allowedTools);
// Both hardcoded disallowed tools should be removed
@@ -732,8 +732,8 @@ describe("buildDisallowedToolsString", () => {
});
test("should handle custom disallowed tools when all hardcoded tools are overridden", () => {
const customDisallowedTools = "BadTool1,BadTool2";
const allowedTools = "WebSearch,WebFetch";
const customDisallowedTools = ["BadTool1", "BadTool2"];
const allowedTools = ["WebSearch", "WebFetch"];
const result = buildDisallowedToolsString(
customDisallowedTools,
allowedTools,