wayfinder

wayfinder is a skill for Claude Code, Codex from mrclrchtr/supi. It costs 46 tokens per session (2,679 once invoked), scanned A, a copy of wayfinder, MIT.

A planning tool for turning a large, unclear project into a shared map of decisions on an issue tracker. It works through those decisions until the route to the goal is clear.

In plain words
What is it for?
Use it to define a project goal, record the questions that need decisions, and resolve them one by one. It can prepare a specification, settle choices before implementation, or plan changes such as moving to a new data structure.
Why use it?
It helps when a project is too large for one coding session and important choices are still unclear. It keeps planning separate from carrying out the work.

Skill for Claude CodeCodex

Written for Claude Code and Codex: disable-model-invocation in frontmatter, but also agents/openai.yaml present. Also seen: mentions subagents.

Part of the mattpocock-skills plugin — 25 skills shipped together

Good fit Use it to define a project goal, record the questions that need decisions, and resolve them one by one. It can prepare a specification, settle choices before implementation, or plan changes such as moving to a new data structure.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/mrclrchtr/supi/wayfinder
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 mrclrchtr/supi --skill wayfinder
Clone the repo
git clone --depth 1 https://github.com/mrclrchtr/supi

Made for: Claude Code, Codex.

Or install mattpocock-skills, the plugin that ships this one along with the rest of its 25 skills.

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 wayfinder

README.md
[![agentmods](https://agentmods.dev/badge/skills/mrclrchtr/supi/wayfinder/github.svg)](https://agentmods.dev/skills/mrclrchtr/supi/wayfinder)
Your own site
<a href="https://agentmods.dev/skills/mrclrchtr/supi/wayfinder"><img src="https://agentmods.dev/badge/skills/mrclrchtr/supi/wayfinder/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 wayfinder

Your own site · 80×15
<a href="https://agentmods.dev/skills/mrclrchtr/supi/wayfinder"><img src="https://agentmods.dev/badge/skills/mrclrchtr/supi/wayfinder.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 46 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,679 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 84% copy Near-identical to another mod 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 $0.00046 $0.02679
Opus 5 $0.00023 $0.01340
Sonnet 5 $0.00009 $0.00536
Haiku 4.5 $0.00005 $0.00268

Measured 9d ago against content hash d33e2141f7c8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

wayfinder 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.

Origin

This is a copy

84% identical to wayfinder — 74 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/engineering/wayfinder/SKILL.md · 129 lines

How it starts

The opening of the file, as written. The whole thing — 129 lines — stays where its author put it; the contents beside it link to each section on GitHub.

A loose idea has arrived — too big for one agent session, and wrapped in fog: the way from here to the destination isn't visible yet. Wayfinding is about finding that way, not charging at the destination. This skill charts the way as a shared map on the repo's issue tracker, then works its decision tickets — questions whose resolution is a decision, not slices of a build to execute — one at a time until the route is clear.

The destination varies per effort, and naming it is the first act of charting — it shapes every ticket. It might be a spec to hand off and iterate on, a decision to lock before planning starts, or a change made in place like a data-structure migration. The map is domain-agnostic — engineering work, course content, whatever fits the shape.

Plan, don't do

Wayfinder is planning by default: each ticket resolves a decision, and the map is done when the way is clear — nothing left to decide before someone goes and does the thing. The pull to just do the work is usually the signal you've reached the edge of the map and it's time to hand off. An effort can override this in its Notes — carrying execution into the map itself — but absent that, produce decisions, not deliverables.

Refer by name

Every map and ticket is an issue, so it has a name — its title. In everything the human reads — narration, the map's Decisions-so-far — refer to it by that name, never by a bare id, number, or slug. A wall of #42, #43, #44 is illegible; names read at a glance. The id and URL don't vanish — a name wraps its link — but they ride inside the name, never stand in for it.

The Map

The map is a single issue on this repo's issue tracker, labelled wayfinder:map — the canonical artifact. Its tickets are child issues of the map.

The map is an index, not a store. It lists the decisions made and points at the tickets that hold their detail; a decision lives in exactly one place — its ticket — so the map never restates it, only gists it and links.

Read the full file on GitHub · 129 lines

Files

What ships with it

2 files 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. 9d ago First seen · 129 lines · 46 tokens per session scan A d33e2141f7c8

Subscribe to this mod's changes

wayfinder is a skill published in the GitHub repository mrclrchtr/supi (89 stars, last pushed today), licensed MIT. It adds 46 tokens to every session and 2,679 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 84% identical to wayfinder, differing in 74 lines, and is treated as a copy.