The Library
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Build a spreadsheet formula from plain English
Plain-English description in, paste-ready spreadsheet formula out — Excel or Google Sheets dialect. Includes the "when it breaks" caveats most AI prompts skip.
Convert an Excel formula to Google Sheets (or vice versa)
Convert spreadsheet formulas between Excel and Google Sheets, with a callout of any function that doesn't exist in the target and the workaround used.
Outcome measure analysis agent
Quarterly review: takes your full caseload's outcome scores, identifies what's working, what's not, where you're an outlier (pos or neg) vs published benchmarks.
Workflow: monthly metric review prep
Prepares the monthly leadership metric review with anomaly investigation + action prompts.
Workflow: weekly product analytics review
Reviews weekly product analytics + recommends product changes.
Build a 'how to read a chart' guide
Drafts a guide on reading charts critically — don't be fooled by misleading visualisations.
Build a 'metric ownership' framework
Assigns clear ownership for every important metric — who's accountable for it.
Build a 'one number you stare at' practice
Picks the single number a team stares at every day — to focus action.
Build a 'data review meeting' for a team
Designs a recurring data review meeting for an individual team.
Build a 'dashboard request triage'
Triages dashboard requests from stakeholders to prevent dashboard sprawl.
Build a 'data trust' building protocol
Plans how a data team builds trust with stakeholders over time.
Build a 'is this number weird' check
Provides a quick check for whether a metric is anomalous before acting on it.
Build an experimentation playbook
Drafts an experimentation playbook covering ideation, design, run, learn.
Build an 'AB test results to action' protocol
Converts an A/B test result into a deployment + learning action plan.
Build a 'data democratisation' program
Plans a program to spread data literacy + access across the company.
Build a 'metric definitions diff' protocol
Catches when metric definitions silently drift over time and breaks comparisons.
Build an 'experiment ideas backlog' format
Drafts a format for collecting + prioritising experiment ideas across the team.
Build a cookieless attribution model
Designs an attribution model that works without third-party cookies.
Build a 'data > opinion' culture protocol
Designs a protocol for shifting from opinion-driven to data-informed decisions.
Build a privacy-friendly analytics setup
Sets up analytics that respects privacy + reduces consent fatigue.
Build a data dictionary
Drafts a data dictionary for a database or warehouse — the human-readable schema.
Build an analytics review meeting agenda
Drafts a recurring analytics review meeting agenda for the leadership team.
Build a 'data product' brief
Briefs a data product (dashboard, model, dataset) like a real product with users + outcomes.
Build an EDA (exploratory data analysis) plan
Plans an exploratory data analysis on a new dataset before forming hypotheses.
Build a 'metrics that matter' framework
Picks the 5 metrics that actually matter for a business stage and ignores the rest.
Run cohort analysis
Designs a cohort analysis with segmentation and visualisation choices.
Build an LTV prediction model
Designs a customer LTV prediction model with features and validation.
Run anomaly investigation
Investigates a metric anomaly with a structured root-cause approach.
Build a metric anomaly alerting plan
Sets up alerting on metrics with thresholds, channels, and noise discipline.
Run causal inference (diff-in-diff)
Plans a difference-in-differences analysis to test the causal effect of an intervention.
Run a survival analysis
Plans a survival analysis for time-to-event data like churn or upgrade time.
Build a self-serve analytics culture
Plans the shift from analyst-bottlenecked reporting to self-serve analytics.
Build a metric review meeting
Designs a recurring metric review meeting that drives action, not status.
Design an A/B test
Designs an A/B test with hypothesis, variants, primary metric, and decision rules.
Run a multivariate test
Designs a multivariate test where multiple elements vary at once.
Design a multi-armed bandit
Designs a multi-armed bandit experiment for ongoing optimisation rather than one-shot A/B.
Calculate statistical significance
Calculates significance for an A/B test result with confidence interval and interpretation.
Build a customer health score model
Designs a customer health score model with weighted signals and intervention triggers.
Run funnel analysis
Designs a funnel analysis with stages, drop-off identification, and recommendations.
Run engagement analysis
Plans an engagement analysis to understand depth + frequency of product use.
Build a churn prediction model
Designs a churn prediction model with features, validation, and intervention strategy.
Build a metric tree
Builds a metric tree decomposing a north star metric into its drivers.
Build a data quality framework
Designs a data quality framework with checks, owners, and incident response.
Build a data lineage doc
Documents data lineage from source to consumed metric for trust + debugging.
Build a data observability plan
Plans data observability with monitoring of pipelines, freshness, and quality.
Build a 'correlation vs causation' check
Provides a checklist for distinguishing correlation from causation before acting on data.
Build a 'metric definition' doc
Drafts a precise metric definition that prevents 'we're talking about different things' confusion.
Calculate sample size
Calculates the sample size needed for a survey or A/B test with confidence.
Run sentiment analysis on customer feedback
Codes customer feedback for sentiment with positive, negative, and mixed signal classification.
Run topic modelling on text data
Plans topic modelling (LDA or BERTopic) on a corpus of text data.
Run regression analysis
Plans a regression analysis to test the relationship between variables.
Run cluster analysis
Plans a cluster analysis to find natural groupings in customer data.
Build a forecast model
Designs a forecast model for revenue, headcount, or other future metrics.
Write a marketing performance dashboard spec
Specifies the metrics, layout, and cadence for a weekly marketing performance dashboard.
Write a quarterly social media report
Drafts a quarterly social media performance report with insights and next-quarter recommendations.
Build an attribution model framework
Helps a small team choose and implement an attribution model that fits their stack and budget.
Build a CAC by channel analysis
Calculates customer acquisition cost by channel and recommends where to invest more or less.
Build a churn forensics report
Diagnoses churn root causes with cohort, segment, and reason analysis.
Build an executive dashboard spec
Specifies the 8 metrics and layout for a CEO/leadership dashboard reviewed weekly.