A prompt or brief naming this skill is its invocation.
To TicketsBreak 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.
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.
- 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
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. Every ticket's change merges into its base branch on its own, with its checks passing: when even the batches can't stay green alone, fold the batches that can't into one ticket.
Live acceptance is a ticket of its own. When work must be shown on a live system, split it into a source ticket, which closes when its pull request merges, and a live-acceptance ticket, blocked by the source ticket, whose acceptance criteria are the recorded evidence that the deployed change behaves on the live system as its contract says. A merge never closes it: the source ticket's pull request links it without a closing reference, and it closes only once that evidence is recorded on it. Its live steps take the route the installed rules give work that needs host access.
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 configured tracker; 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 from01in 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. Link each ticket to its parent and its blockers with the platform's native sub-issue and blocking relationships: the "Parent" and "Blocked by" sections restate those links for the reader and never stand in for them. If a native link can't be created, stop and report which one, rather than leaving the edge only in the body.
Publish each ticket awaiting review, without the AFK-ready role: readiness is a separate review of each published ticket, by someone other than you who holds a role the repository authorizes for readiness, after any revision notice the tracker posts, with the companion labels its rules require. A parent's readiness follows the publication of its tickets.
Once reviewed, work the frontier: any ready ticket whose blockers are all done. For a purely linear chain that means top to bottom.
Once a ticket is ready, nobody edits it to record progress, ticking its acceptance criteria included: progress lives in linked pull requests, sub-issue states and comments. A ticket closes when its own acceptance criteria hold.
Do NOT close or modify any parent issue.
: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: needs-triage
- Acceptance criterion 1
- Acceptance criterion 2
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)".
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.
Reads
Paths are relative to the repository root.
docs/agents/issue-tracker.mdanddocs/agents/triage-labels.md: the configured tracker and its triage label vocabulary. When the tracker config is missing and no tracker was provided, ask the user whether to publish to local files or a real tracker; when the label config is missing, use the canonical role names as the label strings.GLOSSARY.mdand the ADRs indocs/adr/: the domain vocabulary and decisions to respect. When either is missing, use the codebase's own words.- The installed rules, such as the
github-repository-configurationrules, which therepository-standardsskill looks up: the companion labels readiness needs, and the route for work that needs host access. When they are missing, readiness carries no companion labels, and a live-acceptance ticket takes no route of its own. .scratch/: the local-files tracker's tickets. When it is missing, create it as step 5 says.