to-tickets

To Tickets

Break a plan, spec, or conversation into a set of tickets: tracer-bullet vertical slices, each declaring the tickets that block it.

The issue tracker and triage label vocabulary should have been provided to you. If not, tell the user to run /setup-matt-pocock-skills.

Process

1. Gather context

Work from whatever is already in the conversation context. If the user passes a reference (a spec path, an issue number or URL) as an argument, fetch it and read its full body and comments.

2. Explore the codebase (optional)

If you have not already explored the codebase, do so to understand the current state of the code. Ticket titles and descriptions should use the project's domain glossary vocabulary, and respect ADRs in the area you're touching.

Look for opportunities to prefactor the code to make the implementation easier. "Make the change easy, then make the easy change."

3. Draft vertical slices

Break the work into tracer bullet tickets.

<vertical-slice-rules>

• Each slice cuts a narrow but COMPLETE path through every layer (schema, API, UI, tests): vertical, NOT a horizontal slice of one layer
• A completed slice is demoable or verifiable on its own
• Each slice is sized to fit in a single fresh context window
• Any prefactoring should be done first

</vertical-slice-rules>

Give each ticket its blocking edges: the other tickets that must complete before it can start. A ticket with no blockers can start immediately.

Wide refactors are the exception to vertical slicing. A wide refactor is one mechanical change (rename a column, retype a shared symbol) whose blast radius fans across the whole codebase, so a single edit breaks thousands of call sites at once and no vertical slice can land green. Don't force it into a tracer bullet; sequence it as expand–contract. First expand: add the new form beside the old so nothing breaks. Then migrate the call sites over in batches sized by blast radius (per package, per directory), each batch its own ticket blocked by the expand, keeping CI green batch to batch because the old form still exists. Finally contract: delete the old form once no caller remains, in a ticket blocked by every migrate batch. When even the batches can't stay green alone, keep the sequence but let them share an integration branch that all block a final integrate-and-verify ticket; green is promised only there.

4. Quiz the user

Present the proposed breakdown as a numbered list. For each ticket, show:

• Title: short descriptive name
• Blocked by: which other tickets (if any) must complete first
• What it delivers: the end-to-end behaviour this ticket makes work

Ask the user:

• Does the granularity feel right? (too coarse / too fine)
• Are the blocking edges correct: does each ticket only depend on tickets that genuinely gate it?
• Should any tickets be merged or split further?

Iterate until the user approves the breakdown.

5. Publish the tickets to the configured tracker

Publish the approved tickets. How depends on the tracker /setup-matt-pocock-skills configured; the tickets are the same either way, only the shape of the blocking edges changes:

• Local files → write one file per ticket under .scratch/<feature-slug>/issues/<NN>-<slug>.md, numbered from 01 in dependency order (blockers first). Each file's "Blocked by" lists the numbers/titles it depends on. Use the per-ticket file template below: one ticket per file, never a single combined file.
• A real issue tracker (GitHub, Linear, …) → publish one issue per ticket in dependency order (blockers first) so each ticket's blocking edges can reference real identifiers. Use the platform's native blocking / sub-issue relationship where it has one; otherwise set each ticket's "Blocked by" to the blocking issues. Apply the ready-for-agent triage label unless instructed otherwise; the tickets are agent-grabbable by construction.

Work the frontier: any ticket whose blockers are all done. For a purely linear chain that means top to bottom.

Do NOT close the parent issue or rewrite its body. Step 6 is the only change you make to it.

<local-ticket-template>

<NN>: <Ticket title>

What to build: the end-to-end behaviour this ticket makes work, from the user's perspective, not a layer-by-layer implementation list.

Blocked by: the numbers/titles of the tickets that gate this one, or "None (can start immediately)".

Status: ready-for-agent

• [ ] Acceptance criterion 1
• [ ] Acceptance criterion 2

</local-ticket-template>

<issue-template>

Parent

A reference to the parent issue on the tracker (if the source was an existing issue, otherwise omit this section).

What to build

The end-to-end behaviour this ticket makes work, from the user's perspective, not layer-by-layer implementation.

Acceptance criteria

• [ ] Criterion 1
• [ ] Criterion 2

Blocked by

• A reference to each blocking ticket, or "None (can start immediately)".

</issue-template>

In either form, avoid specific file paths or code snippets: they go stale fast. Exception: if a prototype produced a snippet that encodes a decision more precisely than prose can (state machine, reducer, schema, type shape), inline it and note briefly that it came from a prototype. Trim to the decision-rich parts, not a working demo, just the important bits.

6. Make the parent ungrabbable

Where the tickets came from a parent spec or issue, that parent has to stop looking like available work while its tickets are open, or an AFK runner grabs the spec and tries to build the whole thing in one run.

How is a property of the tracker, and the repo's issue-tracker doc is authoritative. Read it first. If it is silent on parent specs, use the matching default below, then record what you did in that doc so the next run does the same thing.

• Local files → add a Blocked by: 01, 02, … line near the top of the spec file, listing every ticket, so the scan that works the tickets skips the spec.
• A tracker whose tickets can block their own parent (GitHub, most others) → use the native edge. On GitHub each ticket can carry it at creation (gh issue create --parent <spec> --blocking <spec>), or it can be wired afterwards (gh issue edit <spec> --add-blocked-by <n>). The parent keeps its ready-for-agent label: it is still fully specified, and the edge, not the label, is what says "not yet".
• A tracker that refuses that edge → the label has to do the job instead. Remove the parent's ready-for-agent label while its tickets are open, and give it back when the last one closes. Not every tracker permits a child to block a parent: beads, for one, rejects a blocks edge between an epic and a task in either direction, and none of its other edge types gate.

Either way, leave the rest of the parent alone: do NOT close it or rewrite its body. Once the last ticket closes, the parent is the integrate-and-close ticket.