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

With no annotations, the description carries the full behavioral burden. It helpfully discloses that analysis is AI-driven, hinting at potential latency or non-determinism, but says nothing about cost, permissions, error behavior, or output format. The AI disclosure is real added value, but significant gaps remain.

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?

A single front-loaded sentence that states the action, the input, the mechanism, and the outcome with no wasted words. Well-sized for the tool's simplicity.

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 2-parameter tool with full schema coverage but no annotations and no output schema, the description is minimally adequate. It does not clarify what the analysis returns (free text vs structured), whether a recording must already exist, or what 'detailed analysis' versus 'summary' entails.

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%, so both parameters are already fully documented in the schema. The description adds no syntax, pattern-matching semantics, or format detail beyond what the schema provides, so the baseline of 3 applies.

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?

States a specific verb (analyze) and resource (a Neovim recording), plus the mechanism (AI) and the goal (explain what happened). This clearly distinguishes it from sibling nvim_recordings, which likely just lists recordings. It does not explicitly name the sibling it differs from, 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?

There is no guidance on when to use this tool versus alternatives like nvim_recordings, nvim_cat, or nvim_play. The purpose implies usage ('when you want to understand a recording') but nothing is stated about prerequisites or exclusions, leaving the agent to infer.

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

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

With no annotations, the description must carry the behavioral burden. It does disclose the output shape ('AI-readable format with input/output timeline'), but says nothing about side effects, size/truncation limits, or whether pattern matching returns one or many recordings — all relevant for a display tool fed a glob-like pattern.

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?

A single tight sentence with the output-format information front-loaded. No filler.

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?

One required param, no output schema, no annotations — the description covers the essentials (what it displays and in what format) but omits selection semantics for the pattern and any limits on the recording size/timeline it returns.

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 100% and there is only one parameter, so baseline 3 applies. The description adds nothing about how 'pattern' matching works (glob, substring, exact) beyond what the schema field description already states.

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?

States a specific verb ('Display') and resource ('asciinema recording') plus the output form ('AI-readable format with input/output timeline'), which disambiguates it from siblings like nvim_recordings (listing) and nvim_play (playback). It does not explicitly contrast with those siblings, so it falls 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?

No guidance on when to use this versus nvim_recordings, nvim_play, or nvim_analyze, all of which touch recordings. There is no mention of prerequisites or when-not-to-use conditions.

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

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

No annotations are provided, so the description carries the full behavioral burden, and it discloses nothing: not whether the command mutates buffer state, whether errors abort or return status, whether the session must already be started, or whether the command is executed synchronously. For a tool that can arbitrarily modify an editor session, this is a substantial gap.

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?

It is a single short sentence with no waste, but the brevity reflects under-specification rather than disciplined conciseness — there is no substantive information to front-load.

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 state-mutating tool with no annotations and no output schema, the description should at minimum explain execution semantics, required session state, and error behavior. None of that is present, leaving the agent under-informed before invoking it.

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%, so both `session` and `command` are already documented in the schema and the baseline is 3. The description adds no format details (e.g., whether `command` should include the leading ':'), so it does not earn above baseline.

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?

"Execute a Vim command" states a verb and resource, but the resource is nearly tautological with the tool name and gives no way to distinguish it from siblings like nvim_keys, nvim_source_lua, or nvim_play, which all arguably "execute" things in the same editor session. An agent cannot tell from the description whether this runs an ex-command (':w'), an arbitrary command string, or something else.

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?

There is no indication of when to reach for nvim_cmd versus nvim_keys, nvim_edit, or nvim_source_lua, nor any prerequisites such as an existing session or the expected command syntax (leading colon or not). The agent must infer usage entirely from the name.

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

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It does not say whether the file is opened in an existing editing session, whether a missing file is created, whether an already-open file is reloaded, or whether existing unsaved changes are affected. The mutation-vs-read ambiguity is left unresolved.

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?

A single, front-loaded sentence with no filler or repetition. It is efficient, though arguably under-specified rather than optimally concise for a 3-parameter tool in a large sibling set.

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?

With no annotations, no output schema, and a crowded sibling namespace, the description should clarify session prerequisites, the line default, and how this differs from other nvim viewing/mutation tools. As written it leaves the agent to infer the entire interaction model.

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%, so the schema already documents 'file', 'line', and 'session' adequately. The description's phrase 'at a specific line' merely restates the optional 'line' parameter and adds no format, 1-based/0-based, or default-line semantics beyond what the schema 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 states a concrete verb and resource ('Open a file at a specific line'), which is clearer than a tautology. However, it does not reconcile the name 'nvim_edit' (which implies mutating text) with the stated behavior, nor does it distinguish this from siblings like nvim_cat or nvim_screen that also display file content. An agent could plausibly confuse this with a read/display tool.

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?

There is no guidance about when to use this tool versus the ten sibling tools. It does not say whether 'session' must already exist (via nvim_start) or whether this is the preferred way to move the cursor to a location before calling nvim_type or nvim_keys.

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

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

No annotations are supplied, so the description carries the full behavioral burden. It shows example inputs but never states that keys mutate the buffer/editor state, whether the session must already exist, whether keys are sent atomically or in sequence, or what is returned. That is a significant gap for a state-changing tool with 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?

Front-loaded with the action, then a usage cue, then compact examples. The example list is slightly long but each entry maps a key to an intent, so it earns its space.

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 2-parameter tool with a rich schema and no output schema, the description is adequate on inputs but silent on session prerequisites and the effect/observability of sent keys. It covers the essentials but leaves behavioral context thin.

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 100%, so the baseline is 3, but the description adds genuine meaning beyond the schema: it demonstrates the array semantics (['C-w','l'] as a sequence, ['d','d'] as a compound command) that the schema's key-name list does not convey.

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?

Specific verb+resource ('Send keystrokes to Neovim') with a scope hint ('special keys and navigation'). It implies differentiation from a plain typing tool but never names any sibling, so an agent cannot fully disambiguate nvim_keys from nvim_type or nvim_cmd from the description alone.

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?

'Use for special keys and navigation' gives implied usage context — steer here for control keys rather than literal text. However, no explicit when-not condition or named alternative (e.g., use nvim_type for literal text) is provided, leaving the routing decision to inference.

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

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

No annotations are provided, so the description carries the full behavioral burden, yet it only says 'play'. It does not disclose whether playback is blocking, whether it streams to a terminal or a buffer, whether an active nvim session is required, or what happens on a pattern miss.

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?

A single front-loaded sentence with zero padding. It is efficient, though its brevity borders on under-specification rather than being actively harmful.

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 tool with no annotations and no output schema, the description is too thin: playback mechanics, session requirements, and the result of the call are all unaddressed. One short clause cannot cover the behavior an agent needs before invoking it.

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 there is a single parameter with an inline description, so the schema already explains that 'pattern' matches a recording file name. The description adds no format or matching semantics beyond that, which is the expected baseline.

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 names a specific verb (play) and resource (asciinema recording), so an agent understands the operation. It does not explicitly differentiate itself from the related sibling nvim_recordings, which lists recordings, leaving that routing inference to the agent.

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?

There is no guidance on when to use this tool versus nvim_recordings or nvim_cmd, no prerequisite stated (e.g. whether an nvim session must be running), and no exclusions. The agent must guess the context entirely.

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

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

No annotations are provided, so the description carries the full behavioral burden. It does not state whether the list is remote or local, what format it returns, whether it's read-only or has side effects, or whether authentication is needed. For a listing tool with zero annotation coverage, this is a significant gap.

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?

A single, front-loaded sentence that communicates the core purpose without waste. Appropriate size for a simple listing 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?

Given no annotations, no output schema, and no parameter details, the description is too thin. It should at least indicate what a 'recording' is in this context (e.g., asciinema files in a workspace) and what the output looks like, or how it relates to sibling tools like nvim_play.

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 tool takes zero parameters, so there are no parameter semantics to document. The baseline for zero parameters is 4, and the description does not contradict this.

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?

States a specific verb 'List' and resource 'asciinema recordings', which is clear enough on its own. However, it does not differentiate from siblings like nvim_play or nvim_cat, which likely involve recordings. The purpose is understandable but boundary with siblings is left implicit.

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?

No when-to-use guidance or alternatives are mentioned. It does not say when to call this versus nvim_play (which may play a recording) or other sibling tools, leaving the agent to infer.

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

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

No annotations are provided, so the description carries the full burden. It does not disclose whether the screen capture is read-only, whether it includes only the visible viewport or scrollback, whether it requires an active session, or what form the returned content takes.

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?

A single short sentence that is front-loaded with the action and resource. It is appropriately sized, though it is terse to the point of omitting useful detail.

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?

With no annotations and no output schema, the description should explain return format and session requirements. It omits what 'screen content' looks like (plain text, ANSI, image) and any prerequisite state, leaving the agent under-informed for a tool it must call 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%, so both the 'color' and 'session' parameters are already documented in the schema. The description adds no additional parameter context, so the baseline of 3 applies.

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 ('Capture') and resource ('current screen content'), which is clearly distinct from siblings like nvim_edit, nvim_type, or nvim_cmd. It does not explicitly contrast with nvim_cat or nvim_analyze, which may also surface content, but the purpose is unambiguous.

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?

There is no guidance on when to use this tool versus nvim_cat, nvim_analyze, or nvim_recordings. No preconditions (e.g., a session must be running) or exclusions are stated, leaving the agent to infer usage.

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

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

No annotations are provided, so the description carries the full burden. Sourcing a Lua file executes arbitrary code with potential side effects on the running Neovim session, but the description discloses nothing about side effects, reversibility, permissions, or return behavior. Naming the :luafile mechanism is the only added context.

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?

A single front-loaded sentence with no wasted words. It is efficient, though its brevity contributes to the missing behavioral detail rather than being purely a virtue.

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 simple two-parameter tool with no output schema the description covers the core action, but the absence of annotations means it should ideally disclose the code-execution side effects and session impact. It is minimally adequate but leaves meaningful gaps.

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%, so both 'session' and 'file_path' are already documented in the schema. The description adds no syntax, path-resolution, or format details beyond what the schema provides, making the baseline 3 appropriate.

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?

States a specific verb ('Source') and resource ('a Lua file in Neovim') plus the underlying mechanism (:luafile). This clearly distinguishes it from generic siblings like nvim_cmd or nvim_edit, though it doesn't explicitly name those alternatives.

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?

There is no guidance on when to use this tool versus alternatives such as nvim_cmd (which could also execute Lua) or nvim_edit. The agent is left to infer that this is the dedicated path for loading Lua files.

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

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

No annotations are provided, so the description carries the full behavioral burden. It does not disclose side effects such as creating a persistent tmux session, required environment/dependencies, whether sessions survive disconnects, or how to terminate them via nvim_stop.

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?

A single front-loaded sentence with no filler, appropriately sized for a one-action tool. It is terse, but the missing behavioral context is captured in separate dimensions rather than being verbosity here.

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 session-creation tool with no annotations and no output schema, the description omits lifecycle or return behavior. The schema fully documents all optional parameters, so basic invocation is possible, but the definition is only adequate rather than complete.

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 all four parameters (width, height, record, session) have detailed schema descriptions with defaults and bounds. The description adds no parameter meaning, so the baseline of 3 applies.

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?

States a specific verb ('Start') and resource ('new Neovim session in tmux'), so an agent can tell this creates a session rather than editing, sending keys, or stopping. It does not explicitly distinguish itself from siblings like nvim_play or nvim_recordings, but the start-session scope is clear.

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?

No when-to-use guidance, prerequisites, or alternative routing is provided. It does not say to use this before nvim_edit/nvim_cmd, whether tmux must be installed, or how it relates to nvim_stop, leaving usage entirely to inference.

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

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

No annotations are provided, so the description carries the full behavioral burden. It says 'Stop' but does not disclose whether the stop is graceful, destructive, reversible, what happens to unsaved session state, or any auth requirements.

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 a single four-word sentence with no wasted words and the action is front-loaded. It is appropriately compact for a simple stop operation, though extremely minimal.

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 low-complexity, one-parameter tool with full schema coverage and no output schema, the description is minimally adequate. However, with no annotations and no behavioral detail, it leaves gaps around what stopping a session actually entails.

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 the single 'session' parameter is already described as 'Session name' in the schema. The description adds no additional meaning about the parameter, so the baseline of 3 applies.

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 states a specific verb and resource: 'Stop' and 'Neovim session'. It is clear enough to distinguish from most siblings, especially nvim_start, but it does not explicitly name alternatives or define scope beyond the session parameter.

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?

There is no guidance on when to use this tool versus alternatives, no prerequisites, and no exclusions. The description only states the action, leaving usage context entirely to inference.

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

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

With no annotations, the description carries the full burden and does well on the core behavior: characters including $, !, and quotes are typed exactly, and the '$HOME' example clarifies no shell expansion occurs. It does not mention session prerequisites, current mode, or cursor behavior, leaving some operational context undisclosed.

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 front-loaded with the core action, followed by use cases and a concrete example. There is minor redundancy between 'without any special key interpretation' and 'typed exactly as provided,' but every sentence contributes and it stays brief.

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 simple two-parameter typing tool with no output schema, the description covers what an agent needs to invoke it correctly: literal typing, no escaping, and a clarifying example. It omits session lifecycle context (e.g., must the session already be started), which is a modest gap for this complexity level.

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%, so both parameters are already documented with newline/tab behavior and no-escaping semantics. The description adds an illustrative example but no additional semantic detail beyond what the schema provides, matching the baseline for fully covered parameters.

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 names a specific verb ('Type') and resource ('literal text') and distinguishes itself from key-sequence siblings by ruling out 'special key interpretation.' It does not explicitly name an alternative like nvim_keys, so full sibling differentiation is implied rather than stated.

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 gives clear use cases ('Perfect for code, URLs, or text with special characters') and an implicit exclusion via 'without any special key interpretation.' It stops short of naming the sibling tool to use when special keys are desired, so it lacks explicit alternatives.

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