GitHub Project Board Agent Skill

Operate as an autonomous agent that discovers, claims, executes, and completes tasks from a GitHub Projects V2 board using the gh CLI.

Prerequisites

# Verify gh is authenticated with project scopes
gh auth status
# If missing project scopes:
gh auth refresh -h github.com -s read:project,project

Setup: Load Project Config

Before any operation, the agent must load the project configuration. Run the setup script to discover the project:

scripts/setup.sh <owner> <project-number>

This outputs a PROJECT_CONFIG block that the agent should use for all subsequent operations. If no config is provided by the user, discover it:

# List projects for the org/user
gh project list --owner <owner>

# Get field IDs and option mappings
gh project field-list <project-number> --owner <owner> --format json

See references/FIELD_MAPPING.md for how to parse and cache field mappings.

Agent Lifecycle

Step 1: Discover Available Tasks

Find tasks that are ready to be picked up:

gh project item-list <project-number> --owner <owner> --limit 100 --format json | \
  python3 scripts/discover.py --platform "<platform>" --status "Todo" --unlocked

Selection criteria (in priority order):

1. Status = Todo
2. Execution Lock = Unlocked (or unset)
3. Agent Owner = unset (no other agent has claimed it)
4. Platform matches agent's platform (e.g., iOS, Android, Web, Backend)
5. Priority: P0 > P1 > P2 > unset

Step 2: Claim a Task

Acquire an execution lock to prevent other agents from claiming the same task:

scripts/update-task.sh <item-id> \
  --status "in_progress" \
  --stage "implementing" \
  --blocked "no" \
  --lock "locked" \
  --agent-owner "<agent-name>"

Lock protocol:

• Always check lock status before claiming
• Set lock FIRST, then update other fields
• If lock fails (another agent claimed it), move to the next task

Step 3: Read Issue Details

# Get full issue context
gh issue view <number> --json title,body,labels,comments,assignees

# Check for linked issues or specs
gh issue view <number> --json body | python3 -c "
import json, sys
body = json.load(sys.stdin)['body']
# Look for 'Blocked by #N', 'Depends on #N', 'Spec: #N' patterns
import re
refs = re.findall(r'#(\d+)', body)
print('Referenced issues:', refs)
"

Step 4: Work on the Task

# Create branch from default branch
git checkout <default-branch> && git pull
git checkout -b <type>/issue-<number>-<short-description>

# Branch naming convention:
# fix/issue-241-question-validator
# feat/issue-217-live-activities
# refactor/issue-243-generic-viewstate
# chore/issue-249-unused-imports

Work on the implementation, then commit and push:

git add <files>
git commit -m "<type>: <description> (#<number>)"
git push -u origin <branch-name>

Step 5: Raise a PR

gh pr create --base <default-branch> \
  --title "<type>: <description>" \
  --body "$(cat <<'EOF'
## Summary
- <what was done>

Closes #<number>

## Test plan
- [ ] <verification steps>
EOF
)"

# Update stage to Review
scripts/update-task.sh <item-id> --stage "review"

The Closes #<number> keyword automatically closes the issue when the PR is merged.

Step 6: Handle Blocked State

When the agent cannot proceed:

# Mark as blocked
scripts/update-task.sh <item-id> \
  --blocked "yes" \
  --lock "unlocked"

# Comment on the issue with the reason
gh issue comment <number> --body "Blocked by #<blocker>: <reason>"

# Move on to the next available task (back to Step 1)

When checking if a previously blocked task is unblocked:

gh project item-list <project-number> --owner <owner> --limit 100 --format json | \
  python3 scripts/discover.py --agent-owner "<agent-name>" --was-blocked

Step 7: Complete (After Merge)

scripts/update-task.sh <item-id> \
  --status "done" \
  --stage "done" \
  --blocked "no" \
  --lock "unlocked"

Decision Tree

Agent starts
│
├─ Has assigned in-progress task?
│   ├─ Yes → Continue working on it
│   └─ No → Discover available tasks
│
├─ Found available task?
│   ├─ Yes → Claim it (lock + assign) → Work on it
│   └─ No → Check for unblocked tasks → If none, idle
│
├─ Task complete?
│   ├─ Yes → PR → Update to Review → Wait for merge → Mark Done
│   └─ No, blocked → Mark Blocked → Release lock → Pick next task
│
└─ PR merged?
    └─ Yes → Mark Done → Release lock → Pick next task

Rules

1. One task at a time — finish or block before picking the next
2. Always lock before starting — prevents race conditions
3. Release lock when blocked — lets humans see it needs attention
4. Priority order — P0 > P1 > P2 > unset
5. Platform boundaries — only work on tasks matching your platform
6. Link PRs to issues — always use Closes #N in PR body
7. Comment on blockers — explain why, link the blocking issue
8. Don't touch other agents' tasks — respect execution locks