Work the next issue

One pass: frontier → choose → claim → branch → build → pull request → stop.

This skill executes STD-002 (issues and agent workflow) and STD-003 (pull requests and branches). Where this file and a standard disagree, the standard wins.

The three gates you never cross

Read these before anything else. Each exists because crossing it converts a small mistake into merged code.

1. You never move an issue into ready (STD-002 §3.5). ready is a person saying

the work is specified well enough to do without asking anyone anything. An agent that promotes its own underspecified ticket and then picks it up has turned a planning failure into a pull request. If you believe an issue is ready, say so in a comment and leave the label alone.

1. You never merge your own pull request (STD-003 §3.12). Opening it is where your

pass ends.

1. You never take work from outside the frontier (STD-002 §3.11). Outside it, the

work is either unaccepted, already claimed, or blocked on something that does not exist yet.

1. Read the frontier

The frontier is every issue that is ready, unassigned, and has no open blocking relationship (STD-002 §3.11).

gh issue list --label ready --state open --json number,title,body,labels,assignees,url \
  --limit 100 | jq '[.[] | select(.assignees == [])]'

Blocking relationships are recorded natively where the tracker supports it and as a ## Blocked by section listing issue references where it does not (STD-002 §3.10). Read the body for that section and drop any issue whose blockers are still open.

If the frontier is empty, stop and say so. Name what is in the backlog that looks close to ready and what each one is missing — that is the useful answer, and it is a triage prompt for a person rather than an invitation to promote something yourself.

2. Choose, and say why

This is your judgement. There is no priority label and no ordering rule; the organisation decided deliberately that picking the next piece of work is a reading of the situation rather than a sort (ADR-004). What is required is not a particular answer but a stated one.

Weigh, roughly in this order:

• What it unblocks. An issue that several others are blocked by is worth more than its

own size suggests. This is the one factor you can check mechanically — look at what names it in a ## Blocked by section.

• Whether it is finishable. A ticket you can carry to a reviewable pull request in one

pass beats a larger one you will abandon half-done, holding a claim.

• Whether it removes a live failure. Something broken in production outranks something

merely absent.

• What the repository is currently for. Read AGENTS.md and the recent commits. Work

that moves the stated current goal beats work that is merely tidy.

• Cost of delay. Some tickets get more expensive the longer they wait — anything

blocking a person, anything about to be overtaken by a dependency change.

Then write the reason down. When you claim, the comment says which issue you took and what you judged it above. Judgement that is not recorded is indistinguishable from picking the first row, and the next reader — usually another agent — has no way to tell whether the choice was considered.

3. Claim it, race-safely

Several agents read the same frontier at the same time, so what you learned in step 1 is already stale. Re-read at the moment of claiming, and read back after writing (STD-002 §3.7, §3.8).

gh issue view "$N" --json assignees,state,labels \
  | jq -e '.assignees == [] and .state == "OPEN"' || exit 0
gh issue edit "$N" --add-assignee "@me" --add-label active
gh issue view "$N" --json assignees \
  | jq -e '[.assignees[].login] == ["'"$AGENT"'"]' || exit 0

If either check fails, another session won. Take the next issue instead — silently. Do not comment and do not unassign the winner.

Once the claim holds, comment. State what happened and what happens next, in one or two sentences, with the reason from step 2 (STD-002 §3.12, §3.13). No preamble, no enthusiasm, no emoji.

Claimed. Taking this ahead of #98 and #103 because both of those are blocked by it.
Next: branch 142-preview-check-not-comment, then a pull request with the preview
reachable from the check list.

4. Cut the branch

Named <issue-number>-<slug>, from the default branch, at the moment work starts (STD-003 §3.1, §3.2). Not from another feature branch and not from a stale local copy.

git fetch origin && git checkout -B "$(gh issue view "$N" --json title \
  | jq -r '"'"$N"'-" + (.title | ascii_downcase | gsub("[^a-z0-9]+"; "-"))')" origin/HEAD

5. Do the work

Ordinary work, against the acceptance criteria in the issue. Two things specific to working a ticket:

• If the issue turns out not to be ready — the criteria contradict, a decision is

missing, the approach needs an answer only a person has — stop and move it to blocked with a comment naming exactly what you need and who from (STD-002 §3.9). blocked means waiting on a person. Waiting on another issue is a blocking relationship, not a label.

• If it grows past one pass, say so on the issue and open the pull request for what is

done, marked draft, rather than holding the claim silently.

6. Open the pull request

Success criteria first — above the why, above the diff summary, above everything (STD-003 §3.6). A reviewer who has to scroll to find out what the change was supposed to achieve reviews the code instead of the outcome.

Four sections, in this order (STD-003 §4):

## Success criteria     — checkable statements, one per box
## Why                  — Closes #N, and what was wrong before
## What changed         — the shape of the diff in prose
## Evidence             — a table mapping each criterion to what proves it

Evidence lives in the pull request itself — attached screenshots and recordings, or command output pasted in — not behind a link that expires. For a change that is not a feature build, evidence may reduce to the check that proves it.

7. Stop

Say what you took, why you took it over what else was there, and what state it is in. Then stop.

A person merges (STD-003 §3.12). If the repository uses the auto-merge opt-in (STD-003 §3.13), a person still applies it.

Running this again is a fresh pass: back to step 1, against a frontier that has changed.

What this skill does not do

• It does not write issues. Specifying work is triage, and triage is ready, which is a

person's decision.

• It does not decide the ordering rule. There isn't one. See ADR-004 for why, and for

what would change the answer.

• It does not review or merge. Both need someone other than the author.