Add noop tool guidance to safe output prompt

[Copilot]

Plan: Update Safe Output Prompt for Noop Tool

• Explore repository structure and locate safe output prompt
• Find noop tool definition in safe_outputs_tools.json
• Locate prompt generation in unified_prompt_step.go
• Update safe output prompt text to include noop instruction
• Review the updated prompt text for clarity
• Run tests to validate changes
• Run fmt, lint and build checks before committing
• Address review feedback: clarify instruction to specify "no other safe output tool calls during this workflow execution"

Changes Made

Initial Change (commit 0e9e1af)

Updated the builtin safe output prompt text in pkg/workflow/unified_prompt_step.go to include instruction about using the "noop" tool.

Updated Change (this commit)

Addressed feedback from @pelikhan: Clarified that the noop tool should only be called if no other safe output tool calls were made during the entire workflow execution.

Before:

Note: If you have no other safe output actions to perform, call the "noop" tool to provide a status message indicating completion or that no actions are needed.

After:

Note: If you made no other safe output tool calls during this workflow execution, call the "noop" tool to provide a status message indicating completion or that no actions were needed.

The updated instruction is more precise and removes ambiguity about when the noop tool should be used.

Original prompt

Update the builtin safe output prompt text that gets injected in the prompt and add a single sentence to tell the agent that it should call the "noop" tool if it had no other safe output to create. Basically, "nothing to do".

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[pelikhan]

@copilot only needed if no safe outputs calls were made

[Copilot]

Updated the instruction to clarify this. Changed from "If you have no other safe output actions to perform" to "If you made no other safe output tool calls during this workflow execution" to make it explicit that noop should only be called when zero safe output calls were made. (5804c04)