Make tool parameter optional in missing_tool safe output

[Copilot]

The missing_tool safe output required both tool and reason parameters, preventing agents from reporting general limitations without naming a specific tool. The MCP server validation rejected calls missing the tool parameter.

Changes

Schema updates (safe_outputs_tools.json, agent-output.json):

• Changed required: ["tool", "reason"] → required: ["reason"]
• Tool parameter now optional, marked "Optional:" in description

Handler updates (missing_tool.cjs):

• Removed validation rejecting missing tool field
• Handler accepts null tool values
• Conditional logging based on tool presence

Type definitions (safe-outputs.d.ts):

• Changed tool: string → tool?: string

Usage

// Specific tool (existing behavior){tool: "docker",reason: "Need containerization",alternatives: "Use VM"}// General limitation (now supported){reason: "Cannot access external APIs",alternatives: "Manual data input"}

All existing tests pass. Added test coverage for optional tool parameter.

Original prompt

Review the missing tool implementation in the safe output MCP server.

The "tool" parameter should be optional and the safe output should take any information to agent deems sharing

See error https://github.com/githubnext/gh-aw/actions/runs/20890839660/job/60021700668#step:45:1 where missing tool fails because missing "tool"

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Claude Engine Smoke Test Results

Last 2 Merged PRs:

• Add workflow: githubnext/agentics/weekly-research #8: Add workflow: githubnext/agentics/weekly-research
• Remove ai-inference, opencode, genaiscript agentic engines for now #10: Remove ai-inference, opencode, genaiscript agentic engines for now

Test Results:
✅ GitHub MCP (list_pull_requests)
✅ Playwright (navigated to github.com, title contains "GitHub")
✅ File Writing (created test file successfully)
✅ Bash Tool (verified file creation)
❌ Serena Go (tool not available)
❌ Safe Inputs GH (tool not available)

Status: PARTIAL PASS - Core functionality verified, 2 tools missing

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