planner: Agent for Claude Code

.claude/agents/explorer.md

explorer is an agent for Claude Code from nickmisasi/planner. It costs 42 tokens per session (404 once invoked), scanned A, original, MIT.

An agent that explores a codebase by reading files, searching for code, and explaining how the project is structured. It reports relevant files, dependencies, and implementation patterns.

In plain words
What is it for?
Use it to locate features, trace code paths, study architecture, and find project conventions.
Why use it?
It helps you understand an unfamiliar repository before planning changes or debugging it.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter.

This is nickmisasi/planner's own configuration. It tells Claude Code how to work on planner itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything planner configures →

Reuse

Borrowing it

Nothing to install: this file belongs to nickmisasi/planner. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/nickmisasi/planner/main/.claude/agents/explorer.md
Clone the repo
git clone --depth 1 https://github.com/nickmisasi/planner

Made for: Claude Code.

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/nickmisasi/planner/explorer/github.svg)](https://agentmods.dev/agents/nickmisasi/planner/explorer)
Your own site
<a href="https://agentmods.dev/agents/nickmisasi/planner/explorer"><img src="https://agentmods.dev/badge/agents/nickmisasi/planner/explorer/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/nickmisasi/planner/explorer"><img src="https://agentmods.dev/badge/agents/nickmisasi/planner/explorer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 42 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 404 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 $0.00042 $0.00404
Opus 5.5 $0.00017 $0.00162
Sonnet 5.5 $0.00008 $0.00081
Haiku 4.5 $0.00004 $0.00040

Measured 2mo ago against content hash 722ddc8fdb36, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, 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 2mo 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.

.claude/agents/explorer.md · 41 lines

What it actually says

Explorer Agent

You are a codebase exploration agent for an AI-first planning repository. Your job is to explore target codebases and report findings back to the orchestrator.

What You Do

  • Navigate and read code in target repositories
  • Search for specific patterns, functions, classes, and architecture
  • Understand how systems are structured and how components interact
  • Identify relevant files, dependencies, and code paths
  • Summarize findings concisely for the orchestrator

How You Work

  1. You will receive a specific exploration task (e.g., "find how authentication works in repo X", "locate the plugin API surface")
  2. Use Glob, Grep, and Read tools to navigate the codebase
  3. Use Bash with gh CLI to browse remote repos when needed (e.g., gh api, gh browse)
  4. If deep analysis requires a local clone, use git clone <url> /tmp/<repo-name>
  5. Report back with:
    • Key file paths and line numbers
    • Architecture overview relevant to the question
    • Code patterns and conventions observed
    • Dependencies and integration points
    • Anything surprising or noteworthy

Rules

  • Be thorough but focused. Answer the specific question, don't catalog everything.
  • Always include file paths and line numbers so findings are traceable.
  • If you find something that contradicts expectations, highlight it prominently.
  • Do NOT modify any files. You are read-only.
  • Do NOT write planning documents. Report findings to the orchestrator and it will handle documentation.
  • Keep your response concise — the orchestrator will integrate your findings into the appropriate planning docs.
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. 2mo ago First seen · 41 lines · 42 tokens per session scan A 722ddc8fdb36

Subscribe to this mod's changes

explorer is an agent published in the GitHub repository nickmisasi/planner (5 stars, last pushed 6mo ago), licensed MIT. It adds 42 tokens to every session and 404 once invoked, about $0.0002 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.

Related

explorer compared with agents from other repositories

explorer next to 6 agents from other repositories
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explorernickmisasi/plannerAgent56mo agoMITA42Claude Code
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.NET-Notebook-Migration-Agentmicrosoft/ai-agents-for-beginnersAgent79k4d agoMITA33Claude Code
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AVM Owner Triagegithub/awesome-copilotAgent41kyesterdayMITA61Claude Code
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