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Fix MCP config not being passed to Claude CLI

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The MCP servers (including github_comment server) were configured but not passed to Claude. This caused the "update_claude_comment" tool to be unavailable.

Changes:
- Write MCP config to a file at $RUNNER_TEMP/claude-mcp-config.json
- Add mcp_config_file output from prepare.ts
- Pass MCP config file via --mcp-config flag in claude_args
- Use fs/promises writeFile to match codebase conventions
This commit is contained in:
km-anthropic
2025-08-08 16:39:33 -07:00
parent 1b4fc382c8
commit 5bdb1e4ae0
3 changed files with 12 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
action.yml
View File

@@ -160,7 +160,7 @@ runs:
INPUT_PROMPT_FILE: ${{ runner.temp }}/claude-prompts/claude-prompt.txt INPUT_PROMPT_FILE: ${{ runner.temp }}/claude-prompts/claude-prompt.txt
INPUT_SETTINGS: ${{ inputs.settings }} INPUT_SETTINGS: ${{ inputs.settings }}
INPUT_TIMEOUT_MINUTES: ${{ inputs.timeout_minutes }} INPUT_TIMEOUT_MINUTES: ${{ inputs.timeout_minutes }}
INPUT_CLAUDE_ARGS: ${{ inputs.claude_args }} INPUT_CLAUDE_ARGS: ${{ steps.prepare.outputs.mcp_config_file && format('--mcp-config {0} {1}', steps.prepare.outputs.mcp_config_file, inputs.claude_args) || inputs.claude_args }}
INPUT_EXPERIMENTAL_SLASH_COMMANDS_DIR: ${{ github.action_path }}/slash-commands INPUT_EXPERIMENTAL_SLASH_COMMANDS_DIR: ${{ github.action_path }}/slash-commands
# Model configuration # Model configuration

6
src/entrypoints/prepare.ts
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@@ -6,6 +6,7 @@
*/ */
import * as core from "@actions/core"; import * as core from "@actions/core";
import { writeFile } from "fs/promises";
import { setupGitHubToken } from "../github/token"; import { setupGitHubToken } from "../github/token";
import { checkWritePermissions } from "../github/validation/permissions"; import { checkWritePermissions } from "../github/validation/permissions";
import { createOctokit } from "../github/api/client"; import { createOctokit } from "../github/api/client";
@@ -57,8 +58,11 @@ async function run() {
githubToken, githubToken,
}); });
// Set the MCP config output // Write MCP config to a file and set the file path as output
const mcpConfigPath = `${process.env.RUNNER_TEMP}/claude-mcp-config.json`;
await writeFile(mcpConfigPath, result.mcpConfig);
core.setOutput("mcp_config", result.mcpConfig); core.setOutput("mcp_config", result.mcpConfig);
core.setOutput("mcp_config_file", mcpConfigPath);
// Step 6: Get system prompt from mode if available // Step 6: Get system prompt from mode if available
if (mode.getSystemPrompt) { if (mode.getSystemPrompt) {

12
test/mockContext.ts
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@@ -27,8 +27,8 @@ const defaultRepository = {
full_name: "test-owner/test-repo", full_name: "test-owner/test-repo",
}; };
type MockContextOverrides = Omit<Partial<ParsedGitHubContext>, 'inputs'> & { type MockContextOverrides = Omit<Partial<ParsedGitHubContext>, "inputs"> & {
inputs?: Partial<ParsedGitHubContext['inputs']>; inputs?: Partial<ParsedGitHubContext["inputs"]>;
}; };
export const createMockContext = ( export const createMockContext = (
@@ -46,15 +46,15 @@ export const createMockContext = (
inputs: defaultInputs, inputs: defaultInputs,
}; };
const mergedInputs = overrides.inputs const mergedInputs = overrides.inputs
? { ...defaultInputs, ...overrides.inputs } ? { ...defaultInputs, ...overrides.inputs }
: defaultInputs; : defaultInputs;
return { ...baseContext, ...overrides, inputs: mergedInputs }; return { ...baseContext, ...overrides, inputs: mergedInputs };
}; };
type MockAutomationOverrides = Omit<Partial<AutomationContext>, 'inputs'> & { type MockAutomationOverrides = Omit<Partial<AutomationContext>, "inputs"> & {
inputs?: Partial<AutomationContext['inputs']>; inputs?: Partial<AutomationContext["inputs"]>;
}; };
export const createMockAutomationContext = ( export const createMockAutomationContext = (
@@ -70,7 +70,7 @@ export const createMockAutomationContext = (
inputs: defaultInputs, inputs: defaultInputs,
}; };
const mergedInputs = overrides.inputs const mergedInputs = overrides.inputs
? { ...defaultInputs, ...overrides.inputs } ? { ...defaultInputs, ...overrides.inputs }
: defaultInputs; : defaultInputs;