Borrowing it
Nothing to install: this file belongs to LightconeResearch/lightcone-cli. 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/LightconeResearch/lightcone-cli/main/CLAUDE.mdgit clone --depth 1 https://github.com/LightconeResearch/lightcone-cliWrote 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/lightconeresearch/lightcone-cli/claude-md)<a href="https://agentmods.dev/instructions/lightconeresearch/lightcone-cli/claude-md"><img src="https://agentmods.dev/badge/instructions/lightconeresearch/lightcone-cli/claude-md/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/instructions/lightconeresearch/lightcone-cli/claude-md"><img src="https://agentmods.dev/badge/instructions/lightconeresearch/lightcone-cli/claude-md.svg" alt="Reviewed on agentmods" width="80" 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 | $0.45655 | $0.45655 |
| Opus 5.5 | $0.18262 | $0.18262 |
| Sonnet 5.5 | $0.09131 | $0.09131 |
| Haiku 4.5 | $0.04566 | $0.04566 |
Grade E, and why
lightcone-cli CLAUDE.md scanned grade E with 2 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 5d 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.
Reaches for credential fileshighPrivilege escalation
SSH keys, cloud credentials, git-credentials, .npmrc, /etc/shadow: reading these is how a config file becomes a credential leak.
outright, and `~/.config/uv/uv.toml` and `~/.netrc` go missing. Recursive force deletehighDestructive command
rm -rf with a variable or a broad path is one typo away from removing the wrong tree.
the node a ported recipe likes to `rm -rf` as a prelude (measured on How it starts
The opening of the file, as written. The whole thing — 2,984 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
Project Overview
lightcone-cli is Lightcone Research's execution layer for ASTRA
(Agentic Schema for Transparent Research Analysis). It ships the lc
executable — an agent-agnostic CLI; it bundles no agent-specific skills,
hooks, or plugins.
- ASTRA = pure specification: schema, validation, prior insights & findings, evidence verification, helpers, minimal CLI
- lightcone-cli = execution layer: project scaffolding, execution, environment identity, hermeticity enforcement
lightcone-cli depends on ASTRA. The astra CLI handles spec operations;
the lc CLI handles execution.
That split is enforced in code, not just described: everything about what
a spec means — scoping, from: references, conditional outputs,
universe resolution, the recipe placeholder grammar — is answered by
astra.resolve and validated by astra.validation before lc acts on it.
lc's whole ASTRA surface is ten functions; see Key Invariants (layer 4).
⚠️ This repository is a clean rebuild in progress
The codebase is being re-added layer by layer on top of the design spec:
../lightcone-cli/docs/design/execution-environment.md— "the locked environment is the execution environment", v6.1. Read it before adding anything — but read it as a reference, not gospel: the rebuild deliberately drifts from it as implementation teaches better answers, and where this file's Recorded decisions disagree with the spec, the decisions win. It lives in the sibling checkout for now (branchredesign_prototype), alongside its decision records (rationale, substrate tradeoffs, hermeticity enforcement, the v6 review). It stays in the sibling checkout and is dropped when the rebuild completes (decision, 2026-08): the design records are not imported into this repo — this file carries the decisions.
The pre-rebuild codebase (Snakemake shim, authored Containerfiles,
container: in astra.yaml, vendored dask executor plugin, WRROC export)
was stripped deliberately. Functionality comes back one layer at a
time, each layer landing with its own tests and dependencies — never
speculatively.
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.
- 5d ago Changed · +282 lines · +4,470 tokens per session 56af0e8f5af8
- 1mo ago Changed · +23 lines · +68 tokens per session c011f67dcc0d
- 1mo ago Changed · +139 lines · +2,189 tokens per session 3062a6ad4b13
- 1mo ago Changed · +27 lines · +251 tokens per session 76d9559da779
- 1mo ago Changed · -1 lines · -3 tokens per session 34180a2c0ac8
- 2mo ago First seen · 2,514 lines · 38,680 tokens per session scan E 8a1c1504fd58
lightcone-cli CLAUDE.md is an instructions file published in the GitHub repository LightconeResearch/lightcone-cli (27 stars, last pushed 3d ago), licensed BSD-3-Clause. It adds 45,655 tokens to every session, about $0.1826 per session on Opus 5.5. A static security scan graded it E with 2 findings (reaches for credential files, recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
lightcone-cli CLAUDE.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| lightcone-cli CLAUDE.mdLightconeResearch/lightcone-cli | Instructions file | 27 | 3d ago | BSD-3-Clause | E | 45,655 | Claude Code |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | yesterday | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |