4 tagged ecma262, measured the same way as everything else here.
Instructions file GitHub Copilot
Instructions for xyzzylabs/tc39-mcp, covering copilot instructions for tc39-mcp, what this project is, when reviewing, enforce these invariants, patterns that are intentional — do not flag and commit messages, pr titles, and issue text.
Instructions file CodexOpenCode
Instructions for xyzzylabs/tc39-mcp, covering project rules for ai agents, what tc39-mcp is, hard rules, code conventions and what you can reference.
Instructions file
Instructions for xyzzylabs/tc39-mcp, a project described as: MCP for the TC39 specs (not affiliated with Ecma/TC39). SHA-pinned ECMA-262 + ECMA-402, AOID-aware search, cross-spec references, edition diffs, git history — read-only, deterministic, hosted-safe.
Instructions file CodexOpenCode
AGENTS.md instructions for bendtherules/ask262, covering agents.md - ask262 project guide, project overview, commands, project structure and code style.