env_snapshot

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

With no annotations provided, the description carries the full burden and does well: it discloses that RAM is captured for running environments, that restore resumes rather than reboots, and that the operation is cheap and only stores changed disk blocks. These are genuinely useful behavioral details beyond the bare action.

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?

Three sentences with no filler. The core action is front-loaded, followed by a behavioral nuance (RAM capture) and a cost/performance note. Every sentence earns its place.

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?

For a two-parameter tool with an output schema, the description fully covers purpose, relationship to env_restore, behavioral implications, and cost. There are no significant gaps that would prevent an agent from using it correctly.

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?

Schema description coverage is 100% and both parameters (name, snap) are already documented in the schema. The description adds context that the snapshot is named, matching the snap parameter, but does not add new semantic detail beyond what the schema already provides.

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 opens with a clear verb and resource: 'Take a named snapshot of an environment.' It also explicitly distinguishes the tool from its restore counterpart by naming env_restore, so an agent can tell it apart from siblings like env_revert or env_fork.

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 phrase 'to come back to later with env_restore' gives clear contextual guidance on how the snapshot relates to future restoration. It implies the intended use but does not explicitly state when not to use it or compare it against other snapshot-like siblings such as env_revert.

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