miru-code-search

miru-code-search is a cursor rule for Cursor from takara-ai/miru-code. It costs 267 tokens per session, scanned A, original, MIT.

A rule that makes Miru MCP the default tool for exploring how code works. Miru searches a codebase and returns small relevant code sections.

In plain words
What is it for?
Use it to answer conceptual questions about a codebase, expand truncated search results, and find similar code elsewhere.
Why use it?
It reduces broad file reads and keeps code exploration focused on the most relevant matches.

Cursor rule for Cursor

Written for Cursor: installed under .cursor/.

Good fit Use it to answer conceptual questions about a codebase, expand truncated search results, and find similar code elsewhere.

Compare 6 cursor rules from other repositories ↓
Install with agentmods
npx agentmods add rules/takara-ai/miru-code/miru-code-search
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.

Clone the repo
git clone --depth 1 https://github.com/takara-ai/miru-code

Made for: Cursor.

Wrote 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.

agentmods badge for miru-code-search

README.md
[![agentmods](https://agentmods.dev/badge/rules/takara-ai/miru-code/miru-code-search/github.svg)](https://agentmods.dev/rules/takara-ai/miru-code/miru-code-search)
Your own site
<a href="https://agentmods.dev/rules/takara-ai/miru-code/miru-code-search"><img src="https://agentmods.dev/badge/rules/takara-ai/miru-code/miru-code-search/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.

agentmods 80×15 button for miru-code-search

Your own site · 80×15
<a href="https://agentmods.dev/rules/takara-ai/miru-code/miru-code-search"><img src="https://agentmods.dev/badge/rules/takara-ai/miru-code/miru-code-search.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 267 This file is loaded in full into every session.
When invoked 267 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original 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 5.1 $0.00267 $0.00267
Opus 5.5 $0.00107 $0.00107
Sonnet 5.5 $0.00053 $0.00053
Haiku 4.5 $0.00027 $0.00027

Measured 2d ago against content hash a25f756a29b6, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

miru-code-search 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 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.

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.

.cursor/rules/miru-code-search.mdc · 22 lines

What it actually says

DO NOT use Grep, Glob, SemanticSearch, or broad file reads to explore how code works when Miru MCP is available.

Search returns compact snippets (~±15 lines around the best match). When a hit has truncated: true, its header gives path:start-end Symbol and anchor_line: read exactly those lines (ranged read) instead of rereading the whole file, and call expand with file_path and anchor_line only for neighbouring chunks.

Use Miru MCP tools:

  • search — one call per question; pass project root as repo
  • Add include and/or exclude Gitignore-style glob patterns when a question targets selected files (for example include: ["src/auth/**"]). search and locate use the same parameters and syntax.
  • expand — fallback: neighbouring chunks in the same file around anchor_line
  • find_related — similar code in other files

Allowed native-tool exceptions:

  • exact literal lookups such as env vars or quoted strings
  • reading a file Miru already identified so it can be edited
  • searching outside the indexed repo
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 Changed · +23 tokens per session a25f756a29b6
  2. 19d ago Changed · +1 lines · +48 tokens per session 885cc4767e59
  3. 1mo ago First seen · 21 lines · 196 tokens per session scan A d16c6188b48e

Subscribe to this mod's changes

miru-code-search is a cursor rule published in the GitHub repository takara-ai/miru-code (12 stars, last pushed 2d ago), licensed MIT. It adds 267 tokens to every session, about $0.0011 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 2026-08-31.

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