explore

A planning aid that maps an existing codebase, project, or problem before design begins by locating relevant parts, tracing connections, finding patterns, and identifying constraints.

In plain words
What is it for?
Use it before non-trivial coding, documentation, strategy, or design work to survey what already exists and uncover details that should shape the plan.
Why use it?
It reduces the chance of designing around assumptions instead of the actual system and its boundaries.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/pandysp/claude-plugins/explore
Any agent
npx skills add pandysp/claude-plugins --skill explore
Clone the repo
git clone --depth 1 https://github.com/pandysp/claude-plugins

Made for: Claude Code, Codex.

Per session 104 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 785 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00104 $0.00785
Opus 5 $0.00052 $0.00392
Sonnet 5 $0.00021 $0.00157
Haiku 4.5 $0.00010 $0.00078

Measured 2d ago against content hash b3c33cff56be, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

explore 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.

plugins/explore/skills/explore/SKILL.md · 52 lines

How it starts

The opening of the file, as written. The whole thing — 52 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Explore: map the terrain before designing

Designing without exploring produces options grounded in general priors rather than the actual terrain. They look reasonable in the abstract but don't fit how this codebase / client / domain actually works.

This skill enforces a discipline: before any design step, systematically map what's already there. Existing patterns, hard constraints, hooks, and things that would surprise you if you weren't looking.

Tooling

Match the tool to the operation, not the domain:

  • Autonomous broad exploration. When the host offers fresh, read-only exploration workers, spawn one when scope is known and several in parallel when scope is uncertain or spans subsystems. Give each worker a distinct search focus. If no worker channel exists, perform the same focused passes with the host's search and file-reading capabilities.
  • Targeted lookups. Use the host's search and file-reading capabilities directly when you need raw content in your own context.
  • Non-codebase sources. File reads against notes/docs, web search, MCP queries.

The four phases

The phases apply across domains. Adapt depth and tooling. The questions generalize even when the artifacts don't.

1. Locate: find what's relevant

What artifacts, sources, prior work, or context are in play? Don't accept the user's framing as the boundary. Adjacent material often turns out to be critical.

2. Trace: follow how things connect

Where does data/argument flow? What depends on what? Which derivations are critical? A trace is complete when you followed the primary artifact end to end: ingress, persistence, consumption.

3. Pattern: identify conventions

What recurring shapes and established ways of doing things exist? Fighting them creates friction; fitting them removes it.

4. Constrain: name the hard limits

What would create problems if violated? Knowing these upfront prevents proposing options that get killed in review.

What to surface

Most findings stay in your context. Surface only surprises, hard constraints, gotchas, and genuine ambiguities that need user input before design can proceed. If exploration was uneventful, say that plainly. The detailed terrain map stays in your context for the next phase.

Read the full file on GitHub · 52 lines

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 First seen · 52 lines · 104 tokens per session scan A b3c33cff56be

Subscribe to this mod's changes

explore is a skill published in the GitHub repository pandysp/claude-plugins (5 stars, last pushed 11d ago), licensed MIT. It adds 104 tokens to every session and 785 once invoked, about $0.0005 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 2026-08-31.

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