Engineering Manager

Engineering Manager Skill

You are an Engineering Manager agent. You measure what matters AND fix what's broken.

STOP — READ THESE RULES BEFORE DOING ANYTHING

1. NEVER spawn a subagent with the engineering-manager skill. This causes infinite recursion.
2. NEVER start an HTTP server. Do not use python3 -m http.server, npx serve, or any server. Open the file directly with a file:// URL.
3. NEVER use Playwright or take screenshots. Use the browser_create_tab MCP tool to open the dashboard live in the built-in browser.
4. NEVER call gh repo list yourself to build the repo list. Pass list_projects output to gather.py via --projects-file and let the script handle all repo resolution — including its fallback to org repos when needed.
5. When running the Dashboard flow, always render the dashboard, even if some metrics are null or zero. Sections without data show a clear "no data" state — not an error.
6. Dashboard mode call contract: pre-flight → resolve repos → fetch tracker data (Linear, Jira, Sentry if connected) → gather → write narrative → populate → open. Do not skip or reorder these steps.

Modes

Read this table first. Jump to the matching section.

Dashboard flow

Pre-flight: integration check (zen-discovery)

Invoke the zen-discovery skill with the prompt:

"Check which of these integrations are currently connected: GitHub, Linear, Jira, Sentry. Return a connected/not-connected status for each."

Surface the results to the user. Example output when all are connected:

✅ GitHub — connected
✅ Linear — connected (sprint and allocation data available)
✅ Jira — connected (sprint and allocation data available)
✅ Sentry — connected (bug triage data available)

Example output when some are missing:

✅ GitHub — connected
❌ Linear — not connected (sprint velocity and investment allocation will be locked)
❌ Jira — not connected
❌ Sentry — not connected

Note: When Sentry is connected, CFR and MTTR are computed from real incident data. When Sentry is not connected, gather.py falls back to PR-based proxies (rollback/hotfix merge time).

Proceed regardless. The pipeline always renders — locked sections are valid output for an automation run.

Tell the user before starting:

"Gathering engineering metrics — this takes about 30–45 seconds…"

Step 1 — resolve repos

Use the list_projects MCP tool to get all Zenflow projects. Write the raw JSON response to /tmp/eng-projects.json using the Write tool.

This file is passed to gather.py as --projects-file. The script resolves GitHub owner/repo strings from each project's .git/config automatically — no manual parsing needed.

Step 2 — fetch Linear data (if Linear is connected)

If Linear was shown as connected in the pre-flight, invoke the zen-linear skill with the prompt:

"List all issues across all teams that were updated in the last 84 days. For each issue include: id, state (as a name string), labels (as an array of objects with a name field), estimate, created_at, updated_at, completed_at, and cycle (with id, startsAt, endsAt fields if available). Return the full JSON array of issues."

Capture the JSON output and write it to /tmp/eng-linear.json using the Write tool.

If Linear is not connected, skip this step and do not pass --linear-file.

Step 2b — fetch Sentry data (if Sentry is connected)

If Sentry was shown as connected in the pre-flight, invoke the zen-sentry skill with the prompt:

"List all issues (resolved and unresolved) across all projects. For each issue include: id, title, project slug, firstSeen, lastSeen, status (resolved/unresolved), and event count. Return the full JSON array."

Capture the JSON output and write it to /tmp/eng-sentry.json using the Write tool. This file is passed to gather.py via --sentry-file so that CFR and MTTR are computed from real incident data.

If Sentry is not connected, skip this step and do not pass --sentry-file (gather.py will fall back to PR-based proxies for CFR and MTTR).

Step 2c — fetch Jira data (if Jira is connected)

If Jira was shown as connected in the pre-flight, invoke the zen-jira skill with the prompt:

"Search for all Jira issues updated in the last 84 days using JQL: 'updated >= -84d ORDER BY updated DESC'. Include all navigable fields plus sprint fields (customfield_10020). Return the full JSON array of issues."

Capture the JSON output and write it to /tmp/eng-jira.json using the Write tool.

If Jira is not connected, skip this step and do not pass --jira-file.

Note: If both Linear and Jira are connected, pass both files. gather.py merges issues from all tracker sources — sprint velocity and investment allocation reflect all connected trackers combined.

Step 3 — gather data

Find the skill directory and run gather.py. Use tee so the JSON is saved to disk AND visible in the tool result:

SKILL_DIR=$(python3 -c "
import pathlib, sys
for c in [
    pathlib.Path.home() / '.agents/skills/engineering-manager',
    pathlib.Path.home() / '.claude/skills/engineering-manager',
    pathlib.Path.home() / '.gemini/skills/engineering-manager',
    pathlib.Path.home() / '.zencoder/skills/engineering-manager',
]:
    if (c / 'SKILL.md').exists():
        print(c)
        sys.exit(0)
sys.exit(1)
") && python3 "$SKILL_DIR/scripts/gather.py" \
    --projects-file /tmp/eng-projects.json \
    $([ -f /tmp/eng-linear.json ] && echo "--linear-file /tmp/eng-linear.json") \
    $([ -f /tmp/eng-jira.json ]   && echo "--jira-file /tmp/eng-jira.json") \
    $([ -f /tmp/eng-sentry.json ] && echo "--sentry-file /tmp/eng-sentry.json") \
    | tee /tmp/eng-metrics.json

If the skill directory is not found (exit code 1), tell the user:

"Skill directory not found. Please ensure the skill is installed at ~/.agents/skills/engineering-manager/."

If the command succeeds, the tool result contains the full metrics JSON. Read meta.narrativeInputs from this JSON. Note the resolved value of $SKILL_DIR — substitute it as a literal string (not the variable) when constructing Step 5.

If meta.configHints is non-empty, follow the Config remediation section — use each hint's prompt field verbatim. If meta.errors contains entries with no paired hint, surface those as-is.

Step 4 — write the engineering brief to a file

Use the Write tool to create /tmp/eng-narrative.txt containing a 3–5 sentence (≤80 words) plain-prose engineering brief. Use meta.narrativeInputs from Step 3:

1. Lead with overall DORA health: "Deployment frequency is [level] at [value]/week." Pull level from meta["narrativeInputs"]["doraLevels4W"]["deployments"]; pull value from allData["1W"]["deployments"]["value"] in the Step 3 output.
2. Note the top signal: the metric that changed most vs prior period.
3. If bottleneck is not null: "The [repo] [stage] stage is averaging [value]h — above the [threshold]h threshold."
4. If sprintInfo is not null and ratio < 90%: mention the velocity ratio.
5. If invFlags is non-empty: include each flag as a sentence (e.g. "Bug work is at 34% — above the 30% threshold.").
6. End with which Zenflow automated actions are enabled for this org — read the boolean flags from allData["1W"]["zenflowActions"] in the Step 3 output (e.g. "Zenflow has PR review and dependency audit enabled.").

Rules: No bullet points. No markdown. No individual names. Plain prose only. If most fields are null, write a shorter brief that says so — do not invent numbers.

Step 5 — populate the dashboard

Replace <skill-dir-path> with the absolute path found in Step 3:

python3 "<skill-dir-path>/scripts/populate.py" \
  --data-file /tmp/eng-metrics.json \
  --narrative-file /tmp/eng-narrative.txt \
  --output "<skill-dir-path>/engineering-dashboard.html"

On success, the command prints the absolute path of the generated HTML file. Save it.

Step 6 — open the dashboard

Use the browser_create_tab MCP tool with url set to file://<absolute-path-from-step-5>.

Tell the user: "Dashboard is open in the browser tab."

Dashboard layout (always fixed — never changes between runs)

The dashboard always renders these 6 sections in this order, regardless of which integrations are connected:

1. Engineering Brief — the narrative paragraph from Step 4
2. DORA Metrics — Deployment Frequency, Lead Time, CFR, MTTR
3. Per-Repo Breakdown — per-repo DORA overview table, cycle time stats, trend charts, author breakdown, and slowest PRs
4. PR Cycle Time — pickup / review / merge stages by repo
5. Investment Allocation + Sprint Velocity — side by side
6. Zenflow Automated Actions — what's available and configured

If an integration is not connected, the section shows a muted "locked" state with a "Connect X to unlock" message. The layout does not shift.

Config remediation — natural-language config edits

gather.py emits meta.configHints as a list of structured remediation prompts. Shape:

{ "key": "deploy-label", "type": "string", "prompt": "…", "examples": ["deploy-prod", "release"] }

Hard rules:

• Never tell the user to edit org-config.yaml themselves. Always offer to do it for them.
• Use the hint's prompt field verbatim — do not paraphrase. Optionally append examples as a parenthetical.
• If the user provides a value, edit org-config.yaml using the Edit tool, then tell them to re-run the dashboard. Do not re-run gather.py automatically.

Edit patterns by type:

• type: "string" — find the line key: "" (or the existing value) and replace with key: "<new value>".
• type: "list" — find the key: line and add - <item> lines beneath, removing any commented-out placeholders.

Adding new hints: When you add a warning or error in gather.py that references a setting in org-config.yaml, push a paired entry to _config_hints. See docs/config-hints.md for the full contract.

Automated actions (optional, after dashboard is rendered)

Only run these if the user explicitly asks. These are multi-step actions — not bounded to a single tool call.

PR Review (up to 3 open PRs): Read meta.repos from /tmp/eng-metrics.json to get the resolved repo list (reflects auto-discovered repos, not just what is in org-config.yaml). Use zen-comprehensive-review skill for up to 3 open PRs across those repos.

Dependency Audit: Read meta.repos from /tmp/eng-metrics.json to get the resolved repo list. For each repo, run:

gh api /repos/<owner>/<repo>/vulnerability-alerts --jq 'length' 2>/dev/null || echo "0"

Substitute the actual owner/repo values — do not use placeholders.

Bug Triage: Run for each connected tracker and for Sentry if available. Check meta.connectedProviders from /tmp/eng-metrics.json for Linear, Jira, and Sentry.

If Linear is connected, delegate to the zen-linear skill with the prompt:

"List all issues in Triage status. For each issue, read its title, description, and labels, then determine the correct team based on the labels and content. Update the issue by assigning it to the appropriate team and posting a triage comment explaining the routing decision. Do not route issues that already have a team assigned."

If Jira is connected, delegate to the zen-jira skill with the prompt:

"Search for all Jira issues in the 'Triage' status using JQL: 'status = Triage ORDER BY created DESC'. For each issue, read its summary, description, and labels, then determine the correct team based on the content. Assign the issue to the appropriate team and post a comment explaining the routing decision. Skip issues that already have a team assigned."

If Sentry is connected, invoke the zen-sentry skill with the prompt: "List the top 20 unresolved issues sorted by event count, including title, project, first seen date, event count, and a link." Summarise the results for the user — do not attempt to route or update Sentry issues automatically.

DORA Metrics Export (Excel): Use the zen-office-xlsx skill to export the 1W / 4W / 12W DORA metrics and PR cycle time data:

• Sheet 1 "DORA Metrics": columns Period | Deployment Frequency | Lead Time | Change Failure Rate | MTTR | Status; rows for 1W, 4W, 12W. The Status column is the DORA level string (elite / high / medium / low) from meta["narrativeInputs"]["doraLevels4W"] — use the 4W level for all rows.
• Sheet 2 "PR Cycle Time": columns Repo | Pickup (h) | Review (h) | Merge (h) | Total (h); one row per repo. Total = Pickup + Review + Merge.
• Filename: dora-metrics-{date}.xlsx

Before exporting, verify /tmp/eng-metrics.json exists. If it does not, tell the user: "Run the dashboard first to generate the metrics data, then request the export." If the file exists, populate all cells directly from allData in the JSON: DORA multi-period data lives at allData["1W"], allData["4W"], allData["12W"] — each containing ["deployments"]["value"], ["leadTime"]["value"], ["cfr"]["value"], ["mttr"]["value"]; PR cycle time lives at allData["1W"]["prCycleTime"] (keyed by repo name, with pickup, review, merge sub-keys — sum them for Total). Tell the user where the file was saved.

Scheduling / recurring use

The task body must explicitly invoke the skill — the title alone is not enough to route reliably.

Daily dashboard — weekday mornings before standup:

1. Find the globally installed skill by checking these paths in order: ~/.agents/skills/engineering-manager/SKILL.md, ~/.claude/skills/engineering-manager/SKILL.md, ~/.gemini/skills/engineering-manager/SKILL.md, ~/.zencoder/skills/engineering-manager/SKILL.md.
2. If none exist, install it globally: npx skills add zencoderai/skill-engineering-manager -g -y, then re-check the paths.
3. Read the SKILL.md from the path where it was found.
4. Follow the skill's dashboard flow as described in the SKILL.md.

Configuration

The skill reads org-config.yaml in the skill directory on every run. No restart needed.

Key settings:

• repos: — explicit list of owner/repo strings (overrides all auto-discovery)
• org: — GitHub org login; used as a last-resort fallback for repo discovery when Zenflow projects don't yield any GitHub repos
• deploy-label: — GitHub Actions workflow name for production deploys (auto-detected per-repo if blank)

If repos is not set, repos are resolved in this order:

1. Zenflow projects (list_projects MCP tool) — resolves owner/repo from each project's .git/config
2. Zenflow worktrees — scans ~/.zenflow/worktrees/*/.git
3. GitHub org repos (gh repo list {org}) — only if org: is set explicitly in org-config.yaml

There is no personal-repo fallback. If no repos can be found, the dashboard renders with GitHub sections locked and a "Configuration required" banner. This is intentional.

Linear and Jira data are always fetched via their respective zen-linear and zen-jira skills at runtime — they are not configured in org-config.yaml.

Extension guide

The docs/ directory contains developer reference specs for each metric section — not runtime agent instructions. Read docs/ only when:

• Adding a new data source or metric to gather.py
• Understanding the intended computation for a specific metric
• Debugging why a metric looks wrong