mcp-java-dev-tools-line-probe-run

A strict verification workflow for checking single-line probes on the Java virtual machine, the system that runs Java programs. It checks whether a line was reached, whether a route works, and whether the probe should fail closed.

In plain words
What is it for?
Use it for line-hit checks, route validation, and fail-closed probe execution in Java projects.
Why use it?
It helps verify narrow JVM execution checks consistently and prevents an uncertain probe from being treated as successful.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/nimbly-dev/mcp-java-dev-tools/mcp-java-dev-tools-line-probe-run
Any agent
npx skills add nimbly-dev/mcp-java-dev-tools --skill mcp-java-dev-tools-line-probe-run
Clone the repo
git clone --depth 1 https://github.com/nimbly-dev/mcp-java-dev-tools

Made for: Claude Code, Codex.

Per session 34 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,811 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
Origin unknown 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 $0.00034 $0.01811
Opus 5 $0.00017 $0.00905
Sonnet 5 $0.00007 $0.00362
Haiku 4.5 $0.00003 $0.00181

Measured 2d ago against content hash ff196f95847a, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

mcp-java-dev-tools-line-probe-run scanned grade A with 1 finding 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 2d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

3. Never fallback to direct `curl`/raw HTTP-only execution.
skills/mcp-java-dev-tools-line-probe-run/SKILL.md · 173 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 2d ago First seen · 173 lines · 34 tokens per session scan A ff196f95847a

Subscribe to this mod's changes

mcp-java-dev-tools-line-probe-run is a skill published in the GitHub repository nimbly-dev/mcp-java-dev-tools (2 stars, last pushed 2d ago), with no licence file. It adds 34 tokens to every session and 1,811 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.