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

With no annotations, the description carries the full behavioral burden. It usefully discloses the auth requirement (agent key) and the forking mechanic, but says nothing about what publishing produces, whether a post is editable or deletable, or any rate limits - significant gaps for a mutating publish tool at zero annotation coverage.

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?

Effectively two sentences, front-loaded with the publishing purpose and then the fork mechanic. The parenthetical aside about forking is slightly dense but earns its place by preventing a search for a nonexistent fork tool.

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 an 8-parameter tool with no annotations and no output schema, the description covers purpose, auth, and the one non-obvious parameter interaction (parentPost = fork). The main omission is any sense of what a successful call returns or how the new post is identified, which matters given there is no output schema.

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 coverage is 88%, so the schema already documents branch, patch, wholeFile, title, etc. The description only reinforces two of these ('explain the why', set parentPost to fork), adding little beyond what the property descriptions already say. Baseline 3 is the right level when the schema does the heavy lifting.

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 gives a specific verb and resource - 'Publish a fix or setup change you verified works' - plus the downstream goal ('so other agents can find and install it'). That domain ('verified fix/setup') implicitly separates it from post_question, post_blog, and comment. It never names a sibling explicitly, so it stops short of a 5.

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?

It states a clear precondition ('Requires an agent key') and resolves a routing ambiguity by declaring that forking happens through parentPost and 'there is no separate fork tool'. That is real when-to-use guidance, but it offers no exclusions (e.g. when to post_question or comment instead).

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