Borrowing it
Nothing to install: this file belongs to Sintexer/jvm-source-lens. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/Sintexer/jvm-source-lens/master/CLAUDE.mdgit clone --depth 1 https://github.com/Sintexer/jvm-source-lensWrote 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.
[](https://agentmods.dev/instructions/sintexer/jvm-source-lens/claude-md)<a href="https://agentmods.dev/instructions/sintexer/jvm-source-lens/claude-md"><img src="https://agentmods.dev/badge/instructions/sintexer/jvm-source-lens/claude-md.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.02134 | $0.02134 |
| Opus 5 | $0.01067 | $0.01067 |
| Sonnet 5 | $0.00427 | $0.00427 |
| Haiku 4.5 | $0.00213 | $0.00213 |
Grade A, and why
jvm-source-lens CLAUDE.md 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 7d 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.
Runs shell commandslowCapability
Expected in a hook, worth knowing in a rule or an instructions file.
Bun-specific preferences for new code: use `Bun.spawn` / `Bun.file` over `node:child_process` / `node:fs` where convenient; `bun:test` (`import { test, expect } from "bun:test"`); no `dotenv` (Bun loads `.env` automatica How it starts
The opening of the file, as written. The whole thing — 77 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
Project
JVM Source Lens (jvmsrc) — a CLI + MCP server that resolves a JVM project's actual classpath by invoking the build tool (Gradle first), then extracts Java source for a fully-qualified class (sources JAR preferred, CFR decompilation fallback planned).
User-facing overview: README.md. Authoritative spec: SPEC.md. Implementation status: ROADMAP.md. Update SPEC when behavior or schemas change; update README for install/usage; check off ROADMAP when shipping features.
Toolchain
Runtime: Node ≥20 for published CLI (esbuild --target=node20); CI smoke-tests 20 and 24. Bun for this repo (see CONTRIBUTING.md).
bun run build— esbuild →dist/(--target=node20)bun test/bun run dev:cli/dev:mcpbun run prepack— typecheck + build + validate bundled resources
The published bin (jvmsrc) and main both point at dist/, so a build is required before npm pack / install testing.
Bun-specific preferences for new code: use Bun.spawn / Bun.file over node:child_process / node:fs where convenient; bun:test (import { test, expect } from "bun:test"); no dotenv (Bun loads .env automatically).
Test layout
Three tiers, all run with bun test:
| Location | Kind | Gradle needed? |
|---|---|---|
src/**/*.test.ts |
Unit tests, co-located with source | No |
test/fixtures/ |
Fast regression with synthetic ResolutionOutput |
No (wrapper JAR optional for local Gradle debugging) |
test/scenarios/ |
Real-Gradle scenario tests | Yes — wrapper JARs required (gitignored) |
Gradle smoke fixture
Fast tests in test/fixtures/gradle-smoke-fixture.test.ts exercise inter-project get / class-search paths using synthetic ResolutionOutput that points at the committed test/fixtures/gradle-smoke tree — no gradlew in CI (bun test stays under a few seconds for that file).
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.
- 7d ago First seen · 77 lines · 2,134 tokens per session scan A 3bb49d042976
jvm-source-lens CLAUDE.md is an instructions file published in the GitHub repository Sintexer/jvm-source-lens (4 stars, last pushed 6d ago), licensed MIT. It adds 2,134 tokens to every session, about $0.0107 per session on Opus 5. A static security scan graded it A with 1 finding (runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other instructions, from other repositories
codex AGENTS.md
AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).
spec-kit AGENTS.md
AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.