Description

This pull request fixes a logic bug in the teamloader where setting defer_all: true on a toolset would cause the entire toolset to be dropped from the agent's context.

Dropping the toolset had the unintended side effect of permanently deleting the toolset's custom Instructions, leaving the LLM completely unaware of when or how to ask for the deferred tools to be loaded.

Changes Made

• Implemented WithNoToolsFilter in pkg/teamloader/filter.go to wrap toolsets.
• This new filter intercepts all tool requests and returns an empty slice, guaranteeing the agent sees zero tools.
• The filter safely delegates to the wrapped toolset for Instructions, ensuring the instructions are seamlessly preserved in the agent's system prompt.
• Replaced the destructive continue block in pkg/teamloader/teamloader.go with the new filter.
• Added comprehensive unit tests in pkg/teamloader/filter_test.go.

Verification

• Ran go test and verified all unit tests pass.
• Verified no formatting or linting regressions with go fmt and go vet.