# Fastcode Search

> Native Node.js semantic search for Agent. No external dependencies.

- Skill: `dokhacgiakhoa/fastcode-search` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add dokhacgiakhoa/fastcode-search`
- Raw SKILL.md: https://api.skillmd.com/api/skills/dokhacgiakhoa/fastcode-search/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: AI & ML
- Author: Dokhacgiakhoa (https://skillmd.com/u/dokhacgiakhoa)
- Updated: 2026-09-09
- Page: https://skillmd.com/skills/dokhacgiakhoa/fastcode-search

---


# FastCode Search (Native)

> **Core Capability**: Lightning-fast codebase navigation using local Node.js indexing.
> **Zero Cost**: Runs locally. No API calls.

## 🤖 Agent Instructions (MANDATORY)

**Rule: BEFORE reading any file content to understand logic, you MUST use FastCode.**

### 1. When to use?
- User asks "Where is the login logic?"
- You need to fix a bug but don't know the exact file.
- You want to understand the project structure.

### 2. How to use?
Run the internal Node.js script. **Do not ask user to install anything.**

#### Step 1: Search
```bash
node cli/skills/fastcode.js search "your_query_here"
```

#### Step 2: Analyze Results
The script returns a JSON list of most relevant files.
- **Action**: Read ONLY the top 1-3 files returned.
- **Benefit**: Saves tokens (don't read the whole repo).

### 3. Maintenance (Auto-Index)
If search returns nothing or "Index not found", run indexing first:
```bash
node cli/skills/fastcode.js index
```

---

## 🛠️ For Humans (Optional)
You can also run this manually if you want:
`node cli/skills/fastcode.js search "auth"`