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Feldspar free repository security scan

by com.project-feldspar

Scan a public repository

scan_repository
Read-onlyIdempotent

Clone a public git repository and run feldspar-scan: OSV.dev advisories for pinned dependencies in lockfiles (npm, pnpm, yarn, pip/uv/poetry, Cargo, Go, Gemfile.lock, composer), secret patterns with redacted evidence, and configuration lint. Returns a JSON report with summary counts and per-finding severity, file, line, advisory id and fixed versions. Deterministic, no LLM involved. Takes 2-90 s depending on repository size.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
urlYeshttps://github.com/owner/repo (also gitlab.com, codeberg.org, bitbucket.org)

Schema Changelog

Changes observed during successful MCP inspections. Dates show when Glama detected each change.

  1. First observed

TDQS

A4.5/5.0
Behavior5/5

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

Beyond the readOnly/hint annotations, the description discloses useful behavioral traits: it clones the repository, takes 2-90s, is deterministic with no LLM involvement, and redacts secret evidence. This gives an agent realistic expectations for side effects, latency, and output handling.

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?

Four tight sentences front-load the core action, then pack the scan categories, return format, execution guarantees, and latency without redundancy. Every sentence earns its place.

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

Completeness5/5

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

With no output schema, the description appropriately explains the JSON report's structure and key finding fields. Combined with the URL format, lockfile support, and latency range, an agent has enough to invoke and interpret the result correctly.

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?

There is only one parameter and the input schema already describes the URL format and supported hosts at 100% coverage, so the baseline applies. The description adds no additional parameter-specific meaning beyond echoing public repository scope.

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?

States a specific verb phrase: 'Clone a public git repository and run feldspar-scan', and enumerates the three scan categories plus return format. This clearly differentiates scan_repository from the only sibling audit_pricing, which is about pricing.

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

Usage Guidelines4/5

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

The description clearly scopes usage to public git repositories and lists supported hosts, while the deterministic/no-LLM note helps an agent decide when this scan is appropriate. It does not explicitly name a sibling alternative, but the sibling is unrelated (audit_pricing), so the intended context is evident.

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

A4.4/5.0
Disambiguation5/5

The two tools have completely distinct purposes: scan_repository performs the actual security scan, while audit_pricing provides pricing and checkout information for the paid audit. There is no realistic risk of selecting the wrong tool.

Naming Consistency5/5

Both tool names follow the same verb_noun snake_case convention: scan_repository and audit_pricing. The pattern is clear and predictable, even though one is an action and the other is more of an informational query.

Tool Count3/5

With exactly two tools, the server feels minimal but not bloated. The core scan tool and the pricing information tool are both useful, but the surface is thin enough to be borderline.

Completeness5/5

For a stateless free repository security scan service, scan_repository fully covers the core workflow: clone, scan, and return structured findings. audit_pricing provides the related paid offering without leaving a dead end since it includes a checkout URL. No obvious missing operations exist for the stated scope.

Resources