Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add jeffreytse/grimoire-core --skill run-team-retrospectivegit clone --depth 1 https://github.com/jeffreytse/grimoire-coreWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/jeffreytse/grimoire-core/run-team-retrospective)<a href="https://agentmods.dev/skills/jeffreytse/grimoire-core/run-team-retrospective"><img src="https://agentmods.dev/badge/skills/jeffreytse/grimoire-core/run-team-retrospective/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/jeffreytse/grimoire-core/run-team-retrospective"><img src="https://agentmods.dev/badge/skills/jeffreytse/grimoire-core/run-team-retrospective.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00050 | $0.01981 |
| Opus 5 | $0.00025 | $0.00991 |
| Sonnet 5 | $0.00010 | $0.00396 |
| Haiku 4.5 | $0.00005 | $0.00198 |
Grade A, and why
run-team-retrospective scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 125 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Run Team Retrospective
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.
Why This Is Best Practice
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)
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 9d ago First seen · 125 lines · 50 tokens per session scan A 768416be848c
run-team-retrospective is a skill published in the GitHub repository jeffreytse/grimoire-core (4 stars, last pushed 23d ago), licensed MIT. It adds 50 tokens to every session and 1,981 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
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