init_tmux_workspace

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations, the description fully discloses behavior: terminal opening, session creation, pane splitting, conditional attach, gtr auto-configuration, role checks, and return values. This provides comprehensive transparency.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is well-structured with Japanese summary, English parameter list, and ASCII art. While slightly lengthy, every section adds value and it is front-loaded with the main purpose.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's complexity (tmux grid, session management, gtr integration), the description covers inputs, outputs, restrictions, and edge cases (existing sessions). The output schema exists, so return values are adequately described.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The schema coverage is 0%, but the description's 'Args' section explains each of the 6 parameters in detail (working_dir, open_terminal, auto_setup_gtr, session_id, enable_git, caller_agent_id), adding meaning beyond the bare schema.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose: 'ターミナルを開いてtmuxワークスペース（グリッドレイアウト）を構築する' (open terminal and build tmux workspace with grid layout). It distinguishes itself from siblings like 'cleanup_workspace' by focusing on initialization.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides clear usage context: it attaches to existing sessions, auto-configures gtr if available, and restricts usage to 'Owner only'. However, it does not explicitly compare to alternative tools or state when not to use it.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.