MantleKit Launch Planner

Compare MantleKit vs Custom Build

compare_build_vs_custom

Read-onlyIdempotent

Estimate where MantleKit saves time versus building from scratch for a SaaS project.

Input Schema

TableJSON Schema

Name	Required	Description
`appIdea`	Yes	Plain-English description of the app idea.
`needsCms`	No	Whether structured content management is needed.
`teamSize`	No	Approximate team size working on the product.
`needsAuth`	No	Whether authentication is needed.
`needsAdmin`	No	Whether a serious admin/dashboard surface is needed.
`commercialUse`	No	Whether client delivery or commercial usage matters.
`needsPayments`	No	Whether hosted payments or checkout are needed.
`timelineWeeks`	No	Target launch timeline in weeks.
`needsEcommerce`	No	Whether products, orders, and customers are needed.
`experienceLevel`	No	Builder profile used to estimate fit and time saved.
`estimatedFeatures`	No	Major product features expected in the first release.
`needsSupportTickets`	No	Whether support ticketing is needed.

Output Schema

TableJSON Schema

Name	Required	Description	Default
`why`	Yes
`links`	Yes
`summary`	Yes
`fitAssessment`	Yes
`roughTimeSaved`	Yes
`mantleKitCovers`	Yes
`recommendedTier`	Yes
`customWorkRemaining`	Yes
`recommendedNextStep`	Yes

TDQS

A3.8/5.0

Behavior3/5

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

Annotations already declare the tool as read-only and idempotent, and the description aligns by saying 'estimate'. It adds a small scoping detail ('for a SaaS project') but does not describe any further behavioral aspects like output format or limitations. With annotations covering safety, this is an acceptable baseline.

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

Conciseness5/5

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

The description is a single, front-loaded sentence with no filler. Every word contributes to the purpose, making it exceptionally concise and well-structured.

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

Completeness4/5

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

The tool has a rich input schema and an output schema, so the description doesn't need to explain parameters or return values. The one-sentence summary is sufficient for understanding the core function, though it could hint at what factors the estimate considers (e.g., team size, features) to edge closer to complete.

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

Parameters3/5

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

Schema description coverage is 100%, so the baseline is 3. The description mentions no parameters at all, relying entirely on the input schema to explain appIdea, needsCms, teamSize, etc. It adds no extra meaning beyond what the schema provides.

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

Purpose5/5

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

The description uses a specific verb ('Estimate') and names the resource ('where MantleKit saves time versus building from scratch'), scoped to SaaS projects. This clearly distinguishes it from sibling tools like generate_project_blueprint or recommend_setup.

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

Usage Guidelines3/5

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

The description implies the use case (comparing MantleKit against a custom build for SaaS), but provides no explicit when/when-not guidance or references to alternatives. The context is clear, but the tool doesn't state when it should be chosen over siblings.

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

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TDQS

A4.1/5.0

Disambiguation4/5

Tools are mostly distinct: compare_build_vs_custom focuses on cost/time comparison, generate_project_blueprint creates a detailed blueprint, match_theme specifically selects a theme, and recommend_setup combines tier, theme, and features. There is slight overlap between match_theme and recommend_setup since both involve theme selection, but descriptions differentiate their scope.

Naming Consistency5/5

All tool names follow a clear verb-first pattern: compare, generate, match, recommend. Although 'compare_build_vs_custom' is not a simple verb_noun, it still begins with an imperative verb and the naming style is consistent across the set.

Tool Count5/5

With only 4 tools, the set is tightly scoped for its purpose as a launch planner. Each tool addresses a distinct planning need, and there is no bloat or redundancy. This size is well within the ideal range.

Completeness4/5

The tools cover the core planning lifecycle: comparing options, generating a blueprint, selecting a theme, and recommending a full setup. Minor gaps exist such as no explicit cost breakdown beyond the comparison or no subsequent implementation steps, but these are workable and not critical to the stated purpose.

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