wayfinder: reframe description around planning big work

The description does the skill's invocation work, so lead with the trigger
that actually reaches for Wayfinder — a huge chunk of work, more than one
agent session can hold — instead of the softer "chart a route through a
foggy problem". Skill body and fog-of-war mechanic unchanged.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

.changeset/wayfinder-plan-big-work.md

@@ -0,0 +1,7 @@
+---
+"mattpocock-skills": minor
+---
+
+Reframe **`wayfinder`**'s description around the work it's for: planning a huge chunk of work, more than one agent session can hold.
+
+The description does the skill's invocation work, so it now leads with the trigger that actually reaches for Wayfinder — a big effort you need to break down — instead of the softer "chart a route through a foggy problem". The skill body and fog-of-war mechanic are unchanged.

skills/in-progress/wayfinder/SKILL.md

@@ -1,6 +1,6 @@
 ---
 name: wayfinder
-description: Chart a route through a foggy problem — turn a loose idea into a shared map of investigation tickets on your issue tracker, and resolve them one at a time until the way to the goal is clear.
+description: Plan a huge chunk of work — more than one agent session can hold — as a shared map of investigation tickets on your issue tracker, and resolve them one at a time until the way to the goal is clear.
 ---
 
 A loose idea has arrived — too big for one agent session, and wrapped in fog: the route from here to a plan isn't visible yet. This skill charts it as a **shared map** on the repo's issue tracker, then works its tickets one at a time. The map is domain-agnostic — engineering work, course content, whatever fits the shape.