explore

explore is a skill for Codex from OutlineDriven/outline-driven-development. It costs 40 tokens per session (995 once invoked), scanned A, original, Apache-2.0.

A read-only orientation report that maps a codebase's structure, important symbols, dependencies, patterns, tools, and critical files.

In plain words
What is it for?
It is for finding where a feature lives, understanding how parts of a repository connect, and learning which files and tools matter most.
Why use it?
It gives a developer a structured view of an unfamiliar repository before they change or debug it. It also identifies the scope of the exploration.

Skill for Codex

Written for Codex: agents/openai.yaml present. Also seen: mentions subagents.

Good fit It is for finding where a feature lives, understanding how parts of a repository connect, and learning which files and tools matter most.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/outlinedriven/outline-driven-development/explore
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.

Any agent
npx skills add OutlineDriven/outline-driven-development --skill explore
Clone the repo
git clone --depth 1 https://github.com/OutlineDriven/outline-driven-development

Made for: Codex.

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 explore

README.md
[![agentmods](https://agentmods.dev/badge/skills/outlinedriven/outline-driven-development/explore/github.svg)](https://agentmods.dev/skills/outlinedriven/outline-driven-development/explore)
Your own site
<a href="https://agentmods.dev/skills/outlinedriven/outline-driven-development/explore"><img src="https://agentmods.dev/badge/skills/outlinedriven/outline-driven-development/explore/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 explore

Your own site · 80×15
<a href="https://agentmods.dev/skills/outlinedriven/outline-driven-development/explore"><img src="https://agentmods.dev/badge/skills/outlinedriven/outline-driven-development/explore.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 40 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 995 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00040 $0.00995
Opus 5 $0.00020 $0.00498
Sonnet 5 $0.00008 $0.00199
Haiku 4.5 $0.00004 $0.00100

Measured 5d ago against content hash 2ccf516f1cba, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, 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 5d 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.

.devin/skills/explore/SKILL.md · 42 lines

How it starts

The opening of the file, as written. The whole thing — 42 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Explore

Contract

Field Bound contract
Trigger User says "explore", "find where X is", "how does X work in the code", or "map the codebase" for repo-local orientation.
Authority Read-only. No file, VCS, credential, paid, published, deployed, or remote mutation.
Side effect A structured orientation report in chat; may dispatch Explore subagents. No state mutation.
Done All 8 output sections emitted or applicability stated, scope declared, and dispatch/escalation rules followed.

Inputs

  • Task text (supplied): the orientation question or concern to map.
  • Repo working tree (supplied by environment): read-only access to the local checkout.
  • Optional: specific files, directories, or concerns used to bound scope before dispatch.

Procedure

  1. Scope. Parse the task; identify the files, directories, and concerns in scope. State the scope explicitly before any dispatch or read. Done when: the scope is stated explicitly before any dispatch or read.
  2. Dispatch decision. For multi-file or uncertain tasks, dispatch Explore subagents instead of reading directly. Escalation: 1 subagent for a single-concern known scope; 3 subagents for multiple concerns or unknown scope; 5 subagents for a cross-module or architectural survey. Auto-skip (direct reads allowed) only for a single file under 50 LOC. Dispatch first; do not grep or glob a multi-file task before dispatching. Done when: the dispatch decision is made with the correct escalation tier, or direct reads are selected for a single file under 50 LOC.
  3. Discovery with token-efficient flags. File discovery: fd -e <ext> --max-results 50. Symbol search: ast-grep run -p 'PATTERN' -l <lang> -C 1 or git --no-pager grep -n -C 2 'pattern'. Content preview: bat -P -p -n -r START:END file or read with offset/limit. Directory structure: eza --tree --level=2. Done when: discovery is completed using token-efficient flags.
  4. Synthesis. Emit all 8 output sections below. Omit a section only when genuinely not applicable and state why. Done when: all 8 output sections are emitted or omitted with a stated reason.
  5. Heavy-codebase escape hatch. When scope exceeds 50 files, use a codebase-packing tool only as an internal analysis aid; never give packed output to the user. Search the packed output for targeted extraction. If no packing tool is available, narrow scope and state the narrowing. Done when: the heavy-codebase escape hatch is applied or scope is narrowed with a stated reason.
  6. Tool restrictions. Allowed (read-only): eza, fd, ast-grep (find-only), git grep, rg, bat, tokei, Read, codebase_search, and any available codebase-analysis or codebase-packing MCP tooling. Banned: Edit, Write, mcp__edit__edit_file, git commit, and any state-mutating bash command. Done when: only allowed tools are used and no banned tool is invoked.
  7. Recursion guard. Do not re-enter a router or orchestrator skill from within this leaf skill. Done when: no router or orchestrator skill is re-entered.

Read the full file on GitHub · 42 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 5d ago First seen · 42 lines · 40 tokens per session scan A 2ccf516f1cba

Subscribe to this mod's changes

explore is a skill published in the GitHub repository OutlineDriven/outline-driven-development (52 stars, last pushed 3d ago), licensed Apache-2.0. It adds 40 tokens to every session and 995 once invoked, about $0.0002 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 2026-09-03.

Related

Other skills, from other repositories

slicing-code-context

Use when an exact symbol, path, entrypoint, or line range can bound a focused code question or patch proposal under a fixed source budget. Not for source changes or broad repository exploration.

OutlineDriven/odin-claude-plugin · 43 tokens

askme

Explore intent with Verbalized Sampling before planning. Use when the task is ambiguous, you need maximum clarifying questions, or you want collaborative or adversarial mode via /askme.

OutlineDriven/odin-claude-plugin · 40 tokens

handoff-prompt

Use when the user asks for a handoff, delegation, or clipboard-ready prompt for another agent: a standalone path-free prompt copied to the clipboard, confirmed by title. Not for session-snapshot briefs — use handoff; never remote, credential, publish, deploy, or irreversible.

OutlineDriven/odin-claude-plugin · 62 tokens

autopilot

Run a hands-off plan-to-ship pipeline by chaining existing skills. Use when the user says "autopilot", "take this from plan to shipped", "run the whole pipeline", "hands-off ship it", or "do the end-to-end build".

OutlineDriven/odin-claude-plugin · 57 tokens

llm-self-loop

Use when a button click, dashboard check, or human verdict sits inside an iteration loop. Replaces it with an autonomous gate or moves non-automatable work outside the loop. Don't use for remote, credential, publish, deploy, or irreversible changes.

OutlineDriven/odin-claude-plugin · 56 tokens

catchup

Use when the human returns after a gap, cannot follow the project, asks what happened, or wants a visual HTML recap page. Not for onboarding: use onboard. Not for handoff: use handoff.

OutlineDriven/odin-claude-plugin · 45 tokens