engineer-brain

name	engineer-brain
description	Your self-updating engineering brain — tracks work patterns, expertise, habits, progress gaps, and generates daily sync-up notes and quarterly review content. Invoke when you say "engineer brain", "update brain", "daily sync", "standup", "sync up", "quarterly connections", "what did I work on", "my progress", "where am I lacking", "what should I focus on", "update my brain", "brain scan", "engineering context", or ask about your own work patterns, "doctor", "health check", "brain health", "watch PRs", "PR digest", "review queue".
argument-hint	<command> — sync | update | quarterly | reflect | scan [days] | doctor | watch [--repos ...] [--stale-days N] [--loop N]
tools	Read, Write, Shell, Glob, Grep

engineer-brain — Self-Updating Engineering Context

A living system that learns how you work, what you focus on, where you're growing, and where you should push further. Produces actionable output for daily syncs and quarterly reviews.

Data Sources

1. Git history across repos in your workspace
2. GitHub activity via gh (authored PRs, reviews, releases/tags) — often more accurate than local commits alone
3. BRAIN.md at ${SKILL_DIR}/BRAIN.md (the living document)
4. Agent transcripts in the Cursor projects folder (demos, skill work, non-commit tasks)
5. Jira / Linear / project tracker via MCP or integration skill (if available)

Critical: Standup-relevant work is frequently not in authored git commits. Reviews, releases, demos, office-hours/meetup prep, cross-team notifications, and design-feedback incorporation must be pulled from GitHub/Jira/transcripts/BRAIN — not inferred from git log --author alone.

---

Commands

Parse the user's request to determine which command to run:

sync (daily standup helper)

Generate today's standup notes.

Scope: Current team and current role only. Only include work from team repos / team activities in this workspace. Never reference past roles or personal/side projects — this is for your team's standup thread. Repos listed in PERSONAL_REPOS inside scan.sh are excluded from team standup scope.

Schedule: Workdays only (Monday–Friday). If today is Monday, "yesterday" means last Friday. If today is a weekend, skip — standups don't happen on weekends.

1. Determine the lookback window based on the day of week:

   • Monday: Friday only — ignore Saturday and Sunday; 3-day scan for data, filter standup bullets and gh to Friday-dated activity only
   • Tuesday–Friday: scan last 1 day
   • Saturday/Sunday: tell the user "No standup today — it's the weekend." and stop.

   bash "${SKILL_DIR}/scripts/scan.sh" "$HOME/path/to/workspace" [1 or 3]
   

2. Also gather non-commit signals (require network/gh auth; scan.sh already emits these when configured):

   # Authored PRs updated in window
   gh search prs --author=@me --updated=">=YYYY-MM-DD" --limit 20
   # Reviews given in window
   gh search prs --reviewed-by=@me --updated=">=YYYY-MM-DD" --limit 20
   # Recent releases (configure RELEASE_REPOS in scan.sh)
   gh release list --repo your-org/your-repo --limit 3
   

   Plus tracker issues assigned in the open sprint, and BRAIN.md "Current Sprint Context" / upcoming events (demos, office hours, meetups).

2a. Calendar signal (gcal MCP, optional but preferred when connected):

• Call status() on the gcal MCP server first.
  • configured: true → call today_sync() (add upcoming_sync(3) or events_range + manual filter on Mondays) — not raw today(). Only merge task-related or active-participation events into standup (hackathon, demo, meetup, workshop, release dry-run).
  • Ignore routine ceremonies even if they appear on calendar: pod/daily syncs, retros, bug reviews, 1:1s, close-outs, drop-in sessions, all-hands, generic "Office"/focus blocks. Do not list them in standup.
  • configured: false → call authorize_instructions(), relay the one-time setup to the user once, and fall back to BRAIN.md's Upcoming Events table for this sync — don't block on it.
• No gcal MCP connected → run bash core/scripts/gcal.sh today --sync if you can shell out, otherwise fall back to BRAIN.md Upcoming Events.
• Treat calendar output as read-only signal — never invent events that didn't come from gcal or BRAIN.md. Precision over recall: when unsure, omit the meeting or ask the user once.

3. Read ${SKILL_DIR}/BRAIN.md for sprint context, active tickets, and scheduled team events (Upcoming Events table — the fallback when gcal isn't configured).

4. Generate standup notes as concise prose bullets, not a dump of every commit hash:

   1. What I worked on yesterday:
   - [Group related work into 1–3 readable bullets: reviews, features/tickets, releases, demos/skills]
   - [Prefer impact language: "released X upstream", "got TICKET ready for review"]
   
   2. What I plan on working on today:
   - [Carry-forward from open PRs + tracker In Progress/Review + BRAIN events]
   - [Include release follow-ups, meetup/demo prep, active review queue when relevant]
   
   3. Blockers:
   - None
   

   Prefer the tone of a real standup (what a teammate cares about) over a git archaeology report. Example of good output:

   1. What I worked on yesterday:
   - Reviewed quality-gate PRs, prepared a demo for a community session, incorporated feedback for TICKET-123 and got it ready for review, and released my-tool upstream.
   
   2. What I plan on working on today:
   - Preparing the release notification for the partner team and raising the corresponding dependency bump PR, actively reviewing open PRs, and preparing for the community meetup.
   
   3. Blockers:
   - None
   

5. If the user corrects a sync ("actually I also…", pastes their real standup, etc.), treat that as ground truth:

   • Absorb into BRAIN.md Current Sprint Context / Recent Achievements
   • Note any signal type the scanner missed (review/release/demo/event)
   • Do not argue with the correction — learn from it
   • Prefer natural-language guidance in BRAIN.md (“prefer X”, “avoid Y”) — not TODO/NO-TODO dump lists (same style as Team Brain corrections)

Standup correction feedback (sync follow-up)

Mirrors the Team Brain correction loop (correct / same source_ref update): human paste → absorb as ground truth → record what was wrong → close the gap.

When the user pastes or describes their real standup after a generated sync:

1. Diff what was missed vs what scan.sh + gh returned.
2. Update BRAIN.md sprint context immediately (overwrite stale bullets for that day).
3. Capture a short learning in BRAIN.md Learning Log or Growth Areas: what the sync got wrong → what to prefer next time.
4. If a systemic gap remains (e.g. releases, demos, cross-team work), improve scripts/scan.sh config and/or the sync steps above in the same session.
5. Confirm to the user what changed — do not re-litigate the correction.

update (refresh the brain)

Re-scan everything and update BRAIN.md.

1. Run the full scan for the last 30 days:

   bash "${SKILL_DIR}/scripts/scan.sh" "$HOME/path/to/workspace" 30
   

2. Read the current ${SKILL_DIR}/BRAIN.md.

3. For each section in BRAIN.md, update with fresh data:

   • Active Repositories: re-count commits, update last-active dates
   • Expertise Map: reclassify based on new commits and file patterns
   • Work Patterns: recalculate commit type distribution and velocity
   • Current Sprint Context: update active branches and recent achievements
   • Growth Areas: check if any previous gaps have been addressed
   • Learning Log: add entries for new technologies or patterns encountered
   • Quarterly Template: append new accomplishments

4. Write the updated BRAIN.md back.

5. Print a summary of what changed:

   ## Brain Updated — [DATE]
   - X new commits since last update
   - New expertise signal: [if any new repo or tech area]
   - Velocity trend: [up/down/stable]
   - Growth checklist: X/Y items addressed
   

quarterly (performance review prep)

Generate quarterly performance review content.

Scope: Current quarter only (last 3 months), current team only. Only include work done in repos in this workspace. Do NOT reference past roles, past teams, or personal/side projects.

1. Determine the current quarter boundaries and scan for that period:

   bash "${SKILL_DIR}/scripts/scan.sh" "$HOME/path/to/workspace" 90
   

2. Read ${SKILL_DIR}/BRAIN.md for context.

3. Produce a structured quarterly document:

   ## Quarterly Review — [QUARTER] [YEAR]
   ### Team: [Your team name]
   
   ### Key Accomplishments
   [For each merged PR in the quarter, summarize impact in business language]
   [Group by theme: Security, Quality, DevEx, Performance, Features]
   
   ### Technical Impact (Numbers)
   - PRs merged: X across Y repos
   - Lines of code: +X / -Y
   - Test coverage added: X test files, Y test cases
   - Issues resolved: X
   
   ### Growth & Learning
   [What new skills were developed this quarter]
   [What areas did you stretch into]
   [Presentations, demos, knowledge sharing events]
   
   ### Cross-Team Collaboration
   [Repos contributed to beyond primary]
   [Reviews done for other team members]
   
   ### Goals for Next Quarter
   [Based on gap analysis from BRAIN.md growth roadmap]
   [Aligned with team priorities]
   

reflect (pattern analysis and feedback)

Analyze current patterns and provide actionable feedback.

1. Run the scan for the last 30 days.

2. Read BRAIN.md.

3. Analyze and report:

   ## Reflection — [DATE]
   
   ### What You're Doing Well
   [Cite specific commits and patterns]
   
   ### Habit Observations
   - Work hours pattern: [when you're most productive]
   - Commit frequency: [daily average, consistency]
   - PR size tendency: [small/medium/large, recommendation]
   - Fix-to-feature ratio: [current ratio, ideal ratio]
   
   ### Blind Spots
   [Repos you have cloned but haven't touched]
   [Types of work you consistently skip]
   [Skills on your growth list that haven't progressed]
   
   ### Recommendations
   1. [Specific, actionable suggestion with reasoning]
   2. [Specific, actionable suggestion with reasoning]
   3. [Specific, actionable suggestion with reasoning]
   

scan (raw data refresh)

Just run the scanner and display results.

1. Parse optional [days] argument (default: 7) and optional --json.
2. Run:

   bash "${SKILL_DIR}/scripts/scan.sh" "$HOME/path/to/workspace" [days]
   # Structured output for tooling (requires python3):
   bash "${SKILL_DIR}/scripts/scan.sh" "$HOME/path/to/workspace" [days] --json
   

3. Display text output directly, or pipe JSON to jq / a local consumer. Prefer text for standups; prefer --json when feeding the dashboard data port or CI.

doctor (brain health check)

Check the health and completeness of your engineering brain.

1. Run the doctor script:

   bash "${SKILL_DIR}/scripts/doctor.sh" "$HOME/path/to/workspace"
   

2. Display the output directly to the user. Do not modify, summarize, or reformat the report.
3. If the overall score is below 80%, suggest the user run /engineer-brain update to improve data freshness.

watch (PR digest across repos)

Scan GitHub repos for open PRs and generate a prioritized digest.

Scope: All GitHub repos in the workspace (or specified repos). Requires the gh CLI to be installed and authenticated (gh auth login).

Usage: watch [--repos owner/repo,...] [--stale-days N] [--loop N]

Flags:

• --repos : comma-separated owner/repo slugs (default: auto-discover from workspace git remotes)
• --stale-days : days of inactivity before a PR is classified as stale (default: 14)
• --loop : re-run every N minutes (default: run once and exit)

1. Run:

   bash "${SKILL_DIR}/scripts/watch.sh" "$HOME/path/to/workspace" [--repos ...] [--stale-days N] [--loop N]
   

2. Display the output directly.

The script classifies each PR into buckets:

• Needs Your Review : you (or a team you belong to) are a requested reviewer
• Your Open PRs : PRs you authored (stale own PRs go to Stale)
• Contributor PRs : human-authored PRs (bot PRs and drafts excluded)
• Stale : no updates in --stale-days days (default 14)

---

Hard Rules

• NEVER commit code without the user's explicit permission.
• NEVER push to any remote without the user's explicit permission.
• NEVER force-push under any circumstance unless the user explicitly says to.
• If a workflow suggests committing or pushing, always stop and ask first.

---

Jira Comment Formats

When asked to write a Jira comment, use one of two formats based on the request:

short (default — quick status update)

Hi team,

[One-liner update summarizing the status, action taken, or decision made.]

Thank you!

in-depth (detailed update with structure)

Hi team,

**Updates:**
- [Update point 1]
- [Update point 2]
- [Update point 3]

**Next Steps:**
- [Action item 1]
- [Action item 2]
- [Action item 3]

Thank you!

Rules:

• If the user says "short" or "quick" or "one-liner" → use the short format
• If the user says "detailed" or "in-depth" or "full update" → use the in-depth format
• If unspecified, ask which format they want
• Always open with "Hi team," and close with "Thank you!"
• Keep bullet points concise and action-oriented
• Use bold headers for sections in the in-depth format

---

Auto-Learning Rules

When running update, apply these heuristics to evolve the brain:

Expertise Classification

• Strong: 10+ commits in an area, or 3+ PRs merged touching the same subsystem
• Growing: 2-9 commits, or 1-2 PRs in an area
• Exposure: Repo cloned, files read, but no commits

Pattern Detection

• If > 60% of commits are fix:, flag that feature work is underrepresented
• If a repo hasn't been touched in 30+ days but was previously active, flag as "cooling"
• If commit velocity drops > 30% week-over-week, flag for attention
• If a growth-area checkbox stays unchecked for 30+ days, escalate in reflection

Feedback Loop

After each update, compare current state against previous state:

• New repos contributed to → celebrate in reflection
• New commit types (first feat: or perf:) → note the growth
• Stale growth items → push harder in recommendations
• Changed work hours → note if healthy or concerning

---

Integration Points

• Daily sync: Run sync before standup meetings
• Weekly reflection: Run reflect on Fridays
• Monthly update: Run update at month start
• Quarterly prep: Run quarterly before performance reviews
• Jira context: If jira-integration skill is available, pull sprint data
• Session analyzer: If session-analyzer skill is available, pull AI usage stats
• PR awareness: Run watch to see review queue, stale PRs, and team activity