Borrowing it
Nothing to install: this file belongs to nirholas/XActions. 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/nirholas/XActions/main/CLAUDE.mdgit clone --depth 1 https://github.com/nirholas/XActionsWrote 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/nirholas/xactions/claude-md)<a href="https://agentmods.dev/instructions/nirholas/xactions/claude-md"><img src="https://agentmods.dev/badge/instructions/nirholas/xactions/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/nirholas/xactions/claude-md"><img src="https://agentmods.dev/badge/instructions/nirholas/xactions/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 | $0.00505 | $0.00505 |
| Opus 5.5 | $0.00202 | $0.00202 |
| Sonnet 5.5 | $0.00101 | $0.00101 |
| Haiku 4.5 | $0.00051 | $0.00051 |
Grade A, and why
XActions CLAUDE.md 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 1mo 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.
How it starts
The opening of the file, as written. The whole thing — 54 lines — stays where its author put it; the contents beside it link to each section on GitHub.
XActions: instructions for Claude
Read AGENTS.md. It is the single source of truth for how to work in this repository, and it is kept current. This file adds only what is specific to Claude; it deliberately does not restate AGENTS.md, because the last time four files described the repository they drifted apart and an agent worked a whole session from the stale one.
AGENTS.md answers, in this order: which lane to use (shell out to the xactions CLI, or
load the MCP server), the CLI lane and its output contract, the MCP lane, a table from
common request to the exact file that answers it, the skills, the directory map and the
three runtime contexts, and the mistakes that have actually cost people time here.
Claude Code specifics
Install the skills so they are available in every session:
xactions skills install --all --global # writes ~/.claude/skills/<id>/
xactions skills install --all # or ./.claude/skills/ in this project
xactions skills list # what is installed, and from where
Add the MCP server:
claude mcp add xactions -- npx -y xactions-mcp
Load only the tools the session needs. The full list is 152 tools and about 60 KB of JSON before you have read a single tweet:
claude mcp add xactions -- npx -y xactions-mcp --tools read,analytics
Hold every write for human approval before you let an agent near a real account:
XACTIONS_MCP_REQUIRE_APPROVAL=1 npx xactions-mcp
Writes then become drafts, released with xactions drafts approve <id> or the
x_approve_draft tool. Independently of that gate, every write is charged against a
rolling 24 hour per-account cap that survives a restart.
Claude Desktop
.mcpb is a bundle the user drags onto Settings > Extensions. It carries the server and
its dependencies and prompts for the session cookie and the tool groups at install time,
so nothing is typed into a config file. Built by node scripts/build-mcpb.mjs and
attached to each release.
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.
- 1mo ago First seen · 54 lines · 505 tokens per session scan A 4e56073da1fe
XActions CLAUDE.md is an instructions file published in the GitHub repository nirholas/XActions (596 stars, last pushed 2d ago), licensed Apache-2.0. It adds 505 tokens to every session, about $0.0020 per session on Opus 5.5. 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 2026-08-30.
Other instructions, from other repositories
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.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
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.
deepseek-harness AGENTS.md
AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).