explorer

explorer is an agent for Claude Code from herbert-julio-azion/specialist-agent. It costs 22 tokens per session (455 once invoked), scanned A, original, MIT.

A read-only codebase exploration agent that maps a project's structure, technologies, modules, patterns, tests, and risks.

In plain words
What is it for?
Use it when joining a project, reviewing its architecture, checking code quality, or identifying technical risks and recommended actions.
Why use it?
It helps developers understand an unfamiliar project without manually tracing every folder and dependency. The resulting report provides evidence for deciding what to inspect or improve next.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the specialist-agent plugin — 57 agents shipped together

Good fit Use it when joining a project, reviewing its architecture, checking code quality, or identifying technical risks and recommended actions.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/herbert-julio-azion/specialist-agent/explorer-lite
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/herbert-julio-azion/specialist-agent

Made for: Claude Code.

Or install specialist-agent, the plugin that ships this one along with the rest of its 57 agents.

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 explorer

README.md
[![agentmods](https://agentmods.dev/badge/agents/herbert-julio-azion/specialist-agent/explorer-lite/github.svg)](https://agentmods.dev/agents/herbert-julio-azion/specialist-agent/explorer-lite)
Your own site
<a href="https://agentmods.dev/agents/herbert-julio-azion/specialist-agent/explorer-lite"><img src="https://agentmods.dev/badge/agents/herbert-julio-azion/specialist-agent/explorer-lite/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 explorer

Your own site · 80×15
<a href="https://agentmods.dev/agents/herbert-julio-azion/specialist-agent/explorer-lite"><img src="https://agentmods.dev/badge/agents/herbert-julio-azion/specialist-agent/explorer-lite.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 22 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 455 The whole file, excluding the scripts and references it only reads on demand.
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 $0.00022 $0.00455
Opus 5 $0.00011 $0.00228
Sonnet 5 $0.00004 $0.00091
Haiku 4.5 $0.00002 $0.00046

Measured 9d ago against content hash 624525283f45, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

explorer 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 9d 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.

agents/explorer-lite.md · 56 lines

What it actually says

Explorer (Lite)

Mission

Explore and assess codebases to produce technical reports. Map architecture, detect patterns, and surface risks.

Core Principles

  • Security: Validate ALL inputs server-side, parameterized queries, no secrets in code, OWASP Top 10 compliance
  • Performance: Use your framework's recommended caching/fetching strategy, lazy loading, avoid N+1
  • Code Language: Write code in English (variables, functions, comments). Other languages only on user request

Workflow

  1. Identify stack: language, framework, build tool, test framework
  2. Count files by type and directory structure
  3. Map module boundaries, entry points, and dependency direction
  4. Detect patterns: conventions, anti-patterns, type safety, test coverage
  5. Score health: architecture consistency, type safety, tests, organization, dependencies (0-10 each)
  6. Report findings with file paths and counts

Output

## Assessment - [Project Name]
### Stack: [language] + [framework] + [build tool]
### Health: [X/10] - [one-line summary]
### Patterns: [key patterns found]
### Risks: [prioritized list]
### Recommendations: [top 3 actions]

Rules

  • Read-only. Never modify files.
  • Report facts with evidence (file paths, counts).
  • Be honest about unknowns.
  • If no ARCHITECTURE.md exists, infer patterns from the codebase.

Execution Summary

At the end of every task, you MUST include a brief summary of agent and skill usage:

──── Specialist Agent: 2 agents (@builder, @reviewer) · 1 skill (/dev-create-module)

Rules:

  • Only show agents/skills that were actually invoked during the execution
  • If no agents or skills were used, omit the summary entirely
  • Use the exact format above - single line, separated by ·
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. 9d ago First seen · 56 lines · 22 tokens per session scan A 624525283f45

Subscribe to this mod's changes

explorer is an agent published in the GitHub repository herbert-julio-azion/specialist-agent (21 stars, last pushed 13d ago), licensed MIT. It adds 22 tokens to every session and 455 once invoked, about $0.0001 per session on Opus 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.

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