agent-tools

agent-tools is a skill for Claude Code from sparq-org/sparq. It costs 618 tokens per session (7,560 once invoked), scanned A, original, MIT.

An MCP server that lets an AI agent use a sparq RDF dataset as tools. RDF is a way to store linked facts, while SPARQL is the query language used to retrieve or build those facts.

In plain words
What is it for?
Use it to run SELECT, ASK, CONSTRUCT, or DESCRIBE queries; inspect classes, prefixes, schemas, and statistics; and generate or validate class data shapes.
Why use it?
It gives an agent a direct way to query the dataset, inspect its structure, view statistics, and optionally check data against supplied SHACL shapes.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the sparq plugin — 55 skills, 20 agents, 2 hooks shipped together

Good fit Use it to run SELECT, ASK, CONSTRUCT, or DESCRIBE queries; inspect classes, prefixes, schemas, and statistics; and generate or validate class data shapes.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/sparq-org/sparq/agent-tools
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add sparq-org/sparq --skill agent-tools
Clone the repo
git clone --depth 1 https://github.com/sparq-org/sparq

Made for: Claude Code.

Or install sparq, the plugin that ships this one along with the rest of its 55 skills, 20 agents, 2 hooks.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for agent-tools

README.md
[![agentmods](https://agentmods.dev/badge/skills/sparq-org/sparq/agent-tools.svg)](https://agentmods.dev/skills/sparq-org/sparq/agent-tools)
Your own site
<a href="https://agentmods.dev/skills/sparq-org/sparq/agent-tools"><img src="https://agentmods.dev/badge/skills/sparq-org/sparq/agent-tools.svg" alt="Measured on agentmods" height="20"></a>
Per session 618 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 7,560 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Agent Snooping · line 52
    Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.
    Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00618 $0.07560
Opus 5 $0.00309 $0.03780
Sonnet 5 $0.00124 $0.01512
Haiku 4.5 $0.00062 $0.00756

Measured 4d ago against content hash f6f23334507c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

agent-tools scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/agent-tools/SKILL.md · 392 lines

How it starts

The opening of the file, as written. The whole thing — 392 lines — stays where its author put it; the contents beside it link to each section on GitHub.

sparq agent-tools (MCP)

The MCP front door of the sparq RDF + SPARQL engine: the opt-in sparq-mcp crate turns a loaded sparq_core::Graph into a Model Context Protocol server so an LLM/agent can use the dataset as first-class tools.

It is opt-in (a separate crate; nothing in the workspace depends on it, the default engine build does not compile it) and a thin wrapper over existing surfaces — it adds no engine capability. JSON-RPC 2.0 framing is hand-rolled over serde_json; there is no heavy MCP-SDK dependency.

Tools

tool wraps returns
query sparq_engine::query_json (SELECT/ASK) SPARQL 1.1 Query Results JSON
construct sparq_engine::construct_ntriples (CONSTRUCT/DESCRIBE) N-Triples text
introspect sparq_introspect::Introspection effective schema — JSON or token-budgeted text
shapes sparq_introspect::Introspection (per-class) data-grounded SHACL-style shape for one class IRI
stats graph count + introspection totals small JSON object
classes sparq_introspect::Introspection class IRIs + instance and predicate counts, largest first
prefixes sparq_introspect::Introspection namespace declarations + distinct IRI term counts, largest first
void sparq_introspect::Introspection W3C VoID N-Triples; optional characteristic sets
ask (feature nlq, OFF by default) sparq_nlq NL→SPARQL loop executed SPARQL + real result rows (+ citations)
nl_query (feature nlq, OFF by default) sparq_nlq grounding + spargebra validation, no execution validated SPARQL, executed: false, no rows
update (gated, OFF by default) sparq_engine::update_in_place_atomic new triple count
template_list / template_invoke (feature templates, OFF by default) sparq_engine::templates (#901 injection-safe binding) definitions / typed fail-closed invocation
text_search (feature text, OFF by default) sparq_text::TextIndex (BM25, lazily built + reconciled) ranked literal hits JSON
validate (feature shacl, OFF by default) sparq_shacl::validate {conforms, results} JSON
describe_form (feature shacl, OFF by default) sparq_forms::derive_form FormDescription JSON, verbatim

Read the full file on GitHub · 392 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 4d ago Changed f6f23334507c
  2. 7d ago First seen · 392 lines · 618 tokens per session scan A 509875a97ce8

Subscribe to this mod's changes

agent-tools is a skill published in the GitHub repository sparq-org/sparq (10 stars, last pushed 2d ago), licensed MIT. It adds 618 tokens to every session and 7,560 once invoked, about $0.0031 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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