From grimoire
Facilitates structured team reflection after a sprint, project, or quarter to identify what worked, what didn't, and commit to behavioral changes. Based on Agile, AAR, and team-learning research.
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Facilitate a structured team reflection on a completed period or project — to name what worked (reinforce it), name what didn't (understand why), and commit to specific behavioral changes before the next cycle.
Facilitate a structured team reflection on a completed period or project — to name what worked (reinforce it), name what didn't (understand why), and commit to specific behavioral changes before the next cycle.
Adopted by: Retrospectives are a core ceremony in the Scrum framework (used by 87% of Agile teams, State of Agile 2022) and adapted across non-engineering business functions; Edmondson's "Teaming" research at hospitals, flight decks, and product teams identifies structured after-action review as the primary mechanism for team learning; the US Army's After-Action Review (AAR) — the military equivalent of a retrospective — is used after every significant operation and is credited with transforming the US Army's training effectiveness in the 1970s; IDEO, Pixar (creative post-mortems), and McKinsey (project learnings) all institutionalize structured team reflection Impact: Edmondson's research (2012) found that teams with structured reflection cycles improved performance 25% faster than comparable teams without them; Google's Project Aristotle data showed that psychological safety combined with team learning processes (including retrospectives) was the strongest two-factor predictor of high team performance; the US Army's institutionalization of AARs is credited in the military literature with improving training effectiveness by 30–40% (Army Research Institute, 1993) Why best: Teams that do not reflect repeat their patterns — both the effective ones and the dysfunctional ones; without a structured reflection, the successful practices from a good quarter are not codified (they depend on the same people staying and doing the same things), and the failures from a bad quarter are rationalized rather than understood; structured retrospectives convert team experience into team learning
Sources: Kerievsky & Derby "Agile Retrospectives" (Pragmatic Bookshelf, 2006); Edmondson "Teaming" (Jossey-Bass, 2012); US Army "Center for Army Lessons Learned" AAR methodology; Google Project Aristotle research (2016)
Sprint/project retrospective: after any bounded work period (2-week sprint, project completion, product launch). Focus: the work practices, collaboration, and process of that specific period.
Quarterly team retrospective: for business teams not running sprints. Focus: team health, goal achievement, working dynamics, and what to change next quarter.
Event retrospective: after a significant event — a major failure, a crisis, a significant win. Focus: what specifically caused the outcome and what to do differently.
The cadence must be regular — quarterly at minimum for non-engineering teams. Retrospectives that only happen after something goes wrong are post-mortems, not continuous improvement.
Retrospectives require psychological safety to produce honest output. Without it, the session produces polished, diplomatic answers that are safe to say — and useless.
Before the session:
Prime directive (Norm Kerth, adapted for all teams):
"Regardless of what we discover, we understand and genuinely believe
that everyone did the best job they could, given what they knew at
the time, their skills, available resources, and the situation at hand."
Read this at the start. It shifts the frame from blame to learning.
The most effective general-purpose structure: 5-phase retrospective (Kerievsky & Derby), adapted to 60–90 minutes.
Phase 1 — Set the stage (10 min) A brief check-in that gets everyone speaking before the substantive discussion. Simple: "One word or phrase for how you're feeling coming into this conversation."
Phase 2 — Gather data (20 min) Structured, parallel input. Use silent brainstorm first (sticky notes or digital equivalent), then cluster.
Two prompts:
Silent brainstorm prevents anchoring: the loudest voice doesn't shape everyone else's answers. Cluster similar themes after everyone has written their own.
Phase 3 — Generate insights (20 min) Move from "what happened" to "why did it happen":
Do not skip this phase. It is what distinguishes a retrospective from a complaint session. Naming what happened (Phase 2) without understanding why produces fixes that don't stick.
Phase 4 — Decide what to do (15 min) From the insights, identify 1–3 specific actions the team will take in the next period. More than 3 is unrealistic — they will not all get done, and the ones that don't train the team to expect retros to be performative.
Each action must have:
Phase 5 — Close the retrospective (5 min) Two closing questions:
Document and share the agreed actions within 24 hours.
The most common retrospective failure: the agreements from last time were never reviewed. This trains the team that retrospective commitments are optional.
Every retrospective opens with: "Let's look at what we committed to last time. What did we do? What didn't happen? Why?"
This accountability loop is what converts retrospective insights into actual behavioral change. Without it, retrospectives produce good conversations but not improvement.
When the manager always facilitates, the retrospective carries the manager's implicit agenda and employees self-censor. Rotating facilitation across team members:
Give a team member the facilitation guide 3 days before their session. Offer to co-facilitate the first time.
npx claudepluginhub jeffreytse/grimoire --plugin grimoireFacilitates structured team reflection through retrospectives, post-mortems, and reviews with root cause analysis and SMART action items.
Facilitate effective retrospectives that surface real issues, drive action, and build psychological safety. Use at sprint end or after major initiatives.
Facilitates a structured retrospective to extract lessons from a project or experience and convert them into actionable commitments.