Interface PrDiscoveryConfig

Restrict the discovery agent to this allow-list of tool names, applied after every tool source (filesystem, built-in, custom, MCP, A2A, and tools) is resolved. Unlike builtInTools/customTools/filesystem (which gate whole tool groups), this trims the final tool set by exact name, so it can pare down MCP server tools (e.g. "mcp__jira__getJiraIssue") and the discovery helper tools ("gh_pr"/"gh_diff"/"gh_issue"/"set_diff") to the minimum needed.

set_requirements is always retained regardless, since it is how the discovery agent records the requirements it found. When omitted, all resolved tools remain available; an empty array keeps only set_requirements. The discovery agent never inherits the top-level GthConfig.allowedTools; this property is its only allow-list.

Fetch the current-branch PR diff with gh pr diff before invoking the discovery agent. The discovery agent can still replace it with the set_diff tool if needed.

Enable change requirements discovery when neither PR id nor requirements id is provided.

Optional tool overrides used only while the discovery agent runs. When omitted, the normal configured tools remain available.