LIVE: The /wayfinder Demo
A 75-minute live stream where one vague feature idea is talked into a decision-complete spec, one parallel grilling session at a time.
July 13thA 17-minute screen-recorded walkthrough of installing, configuring, and running the mattpocock/skills repo on a real codebase — from a vague idea to a reviewed, committed change.
A five-skill pipeline compresses an open-ended coding idea into a durable spec once, then executes it ticket by ticket across however many context-window sessions the work needs, with a separate sub-agent reviewing every ticket against both the spec and the codebase's own standards before it commits.
The video installs the mattpocock/skills repo onto a real CLI codebase, then demonstrates the main flow it's built around: grill-with-docs interviews a vague idea until agent and human share a plan, to-spec compresses that discussion into a durable document, to-tickets slices the spec into pieces sized to one context window each, implement executes a ticket, and code-review runs in a fresh sub-agent that checks the work against both the spec and the repo's standards before committing. The dividing line for skipping straight to implement versus writing a spec is a self-imposed budget of roughly 140k tokens — the point past which the author says agent attention starts to degrade, regardless of the model's stated context limit.
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162k stars, 7.5M downloads, and no tutorial yet — Matt states the video's purpose: walk through the main flow on a real repo, not the advanced/new stuff.

Runs the installer against an existing brownfield repo (AI Hero CLI). Vercel's skills.sh installer clones the repo, finds 38 skills split into 'blessed' Matt Pocock skills and experimental others, and lets him select all with space+return.

Chooses Claude Code as the target agent, global (home-directory) install scope since he's a solo developer, and symlink over copy so every agent references one source of truth. Install completes; skills show up under Claude Code's slash-command list, costing only ~660 tokens of context.

Runs the setup skill, which asks where specs/tickets should live (GitHub, Jira, Linear, or local markdown — he picks local markdown), accepts default triage labels, and chooses 'single context' over 'multi context' for the repo's domain documentation. The skill writes links into CLAUDE.md pointing at the new issue-tracker, triage-labels, and domain docs.

Introduces the 'ask' skill — essentially Matt-as-a-skill, primed with everything about the repo. Asks it 'how do I get started?' and it recommends the idea-to-ship flow: start with grill-with-docs, then fork to either implement directly or to-spec/to-tickets for bigger, multi-session work.

Kicks off /grill-with-docs with a one-line idea (strip internal-only tooling out of the AI Hero CLI to make it public-facing). The agent maps the whole repo, asks six clarifying questions, and reaches a shared plan. Matt explains his self-imposed ~140k-token 'smart zone' — the point where he expects attention degradation regardless of the model's stated limit — and the resulting fork: small enough to fit the budget goes straight to /implement, otherwise to /to-spec and /to-tickets.

/to-spec turns the ~46k-token grilling conversation into one structured spec document saved to the local-markdown issue tracker. /to-tickets then breaks that spec into implementation tickets — first demoed on the small example (collapsed to one slice), then shown on a real prior spec with 11 sub-issue tickets, each scoped to a single context-window session with acceptance criteria living in the parent spec.

Clears context, runs /implement against the ticket. The implement skill runs typecheck, build, and further verification, then hands off to a code-review sub-agent that checks the diff on two axes — does it satisfy every acceptance criterion in the spec, and does it match the repo's coding standards (falling back to general craftsmanship heuristics when a repo has none documented). Review passes; the change commits automatically to the current branch.

Recaps the full loop — align before starting, spec and ticket the work so it survives multiple sessions, implement with review built in — and points viewers to his newsletter for skill updates ahead of the YouTube channel.
Splitting work at a self-imposed 140k-token 'smart zone' — grilling an idea into a spec, breaking the spec into tickets, then implementing and reviewing each one in a fresh context window — is what keeps a coding agent accurate on work too big for a single session.
“I think of my context window as kind of like ending or getting significantly dumber around the 140k mark. I think of that as kinda like the smart zone of the LLM.”
“If you go above 140k, you end up sort of with attention degradation. It ends up getting stupider, does weird hallucinations.”
“Agents are often really bad at editing code or improving code they've just written because they've wrote it, so they just think, okay, that's fantastic, that's fine.”
See every word as it's spoken — crank it to 2× and still catch all of it. The same dual-channel trick behind Amazon's Kindle + Audible.
Matt Pocock opens by admitting the gap: his skills repo has 162,000 stars and 7.5 million downloads, and he's never actually walked through how to use it. What follows is that missing tutorial — install, configure, and run the five-skill flow on a real, brownfield CLI codebase, end to end.
The five-skill pipeline the whole repo is built around. grill-with-docs interviews an idea into a shared plan; if the work is small enough to fit one context-window 'smart zone' (~140k tokens), skip straight to implement; if not, to-spec compresses the discussion into a durable document and to-tickets slices it into single-session tickets. implement executes each ticket and hands off to code-review, which runs in a separate sub-agent and checks the diff against both the spec and the repo's own standards before committing.
“This YouTube channel is a great place to be for subscribing to understanding more about the skills, but really the good stuff is on the newsletter.”
Soft, single mention at the very end after the full flow has already delivered its value — not a pre-roll ask.
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17:06A 75-minute live stream where one vague feature idea is talked into a decision-complete spec, one parallel grilling session at a time.
July 13thA major update to a popular open-source Claude Code skills library — a renamed core workflow, a new pre-planning tool called Wayfinder, and a code-review pass rebuilt on Refactoring's smell vocabulary.
July 8thMatt Pocock built and open-sourced Sandcastle, a TypeScript library that runs Claude Code and other coding agents inside sandboxes to plan, implement, review, and merge whole GitHub issues without a human clicking approve.
April 30thA reluctant 28-minute tour of the Claude Code features every competing harness should steal.
June 17thA 28-minute practical breakdown of seven tools that attack token waste at session startup, during input, and in model output.
May 27thA 14-minute demo of the open-source tool that lets Claude Code, Codex, and Pi work together under one orchestration layer.
June 15th