Claude Skills by jeffreytse

Use when reviewing multiple candidates, options, or items one after another in sequence — interviews, applications, presentations, evidence — before forming an overall ranking or impression, because information presented earlier in a sequence disproportionately shapes the overall judgment relative to its actual informational weight, independent of anchoring or halo effects.

Use when facing a major irreversible decision — career change, starting a company, relocating, committing to a relationship — to evaluate choices by projecting your future self's retrospective judgment rather than current-moment anxiety.

Use when you notice yourself repeatedly, passively replaying the causes or consequences of a negative event without arriving at any new insight or plan — interrupt the cycle with a concrete behavioral break, shift from abstract self-evaluation to concrete process-focused thinking, and use self-distancing or an absorbing activity, because rumination is a distinct, well-documented pattern that worsens and prolongs distress rather than resolving it.

Use when addressing deep, longstanding emotional and behavioral patterns — particularly personality disorders, chronic depression, relationship dysfunction, or childhood-rooted emotional difficulties that have not responded to standard CBT.

Use when a validated statistical model, checklist, or actuarial formula exists for a prediction task — hiring, credit risk, medical diagnosis, parole/recidivism, quality forecasting — and you are tempted to override it with expert intuition or "holistic" case-by-case judgment, because decades of comparison studies show simple statistical rules match or outperform expert intuitive judgment in the large majority of domains studied.

Use when designing learning materials, complex procedures, or interfaces that require users to process and retain information — applying cognitive load theory to reduce extraneous load, manage intrinsic load, and optimize germane load for improved comprehension and performance.

Use when the user wants to reflect on where they stand developmentally by age or decade, self-assess life-stage progress, or plan what comes next as they age — e.g. "am I on track for my age", "what should I focus on in my 40s", "life stage reflection", "midlife check-in"

Use when establishing a daily or weekly practice to improve wellbeing, reduce depression symptoms, or shift habitual negative attentional bias — by writing specific, concrete things you are grateful for using the evidence-based format that produces lasting mood effects.

Use when pursuing a long-term goal involving sustained setbacks, discouragement, or volatility — a new venture, a difficult skill, a volatile position — and others, including credible experts, advise you to quit, because long-term perseverance separates those who eventually succeed from the larger group who exit early, and the field thins specifically because most quit during the difficulty, not because the pursuit stopped being viable.

Use when someone is avoiding challenges, giving up after setbacks, or attributing ability rather than effort and strategy to performance outcomes

Use when someone feels their job is meaningless or purely transactional, wants to cultivate a stronger sense of purpose or calling in their existing work without changing jobs, or a manager/coach wants a structured way to help someone reshape their relationship to their role from the bottom up.

Use when helping someone reduce self-criticism, shame, or harsh inner judgment — particularly when perfectionism, failure responses, or chronic self-blame are interfering with wellbeing, resilience, or motivation.

Use when helping someone identify their top character strengths and design a structured plan to apply them in new ways — particularly for improving engagement, wellbeing, resilience, or role satisfaction.

Use when someone needs to define, prioritize, or create an actionable system around meaningful goals — personal, professional, or organizational

Use when designing a structured program to build psychological resilience in individuals or teams facing chronic stress, adversity, or high-risk environments

Use when helping someone identify their core strengths for career decisions, team composition, coaching, or building on existing assets rather than deficit remediation

Use when a team or working relationship suffers from unclear mutual understanding — recurring surprises about how someone is perceived, or unsurfaced blind spots — map what's known to self and known to others across four quadrants (open, blind, hidden, unknown), and use disclosure and solicited feedback to shrink the blind and hidden areas, because self-awareness gaps and undisclosed information are distinct problems needing different corrective actions.

Use when designing persuasive communications, product pages, or social environments — applying social proof principles (testimonials, user counts, expert endorsement, social sharing metrics, popularity signals) to reduce decision uncertainty and increase adoption of a desired behavior or choice.

Use when facing an escalating conflict situation — designing a conflict de-escalation approach that reduces emotional temperature, creates safety for dialogue, identifies underlying needs, and builds conditions for collaborative resolution rather than adversarial win-lose outcomes.

Use when designing persuasive communication, ethical influence campaigns, or analyzing why a message is failing to shift attitudes or behavior

Use when working with astronomical coordinate systems — converting between equatorial (RA/Dec), horizontal (Az/Alt), ecliptic, and galactic coordinates, and applying precession, refraction, and parallax corrections for accurate sky position calculations.

Use when determining stellar properties — calculating luminosity, temperature, radius, mass, and age from observed magnitudes, colors, spectra, or parallax — using the distance modulus, Stefan-Boltzmann law, HR diagram, and stellar evolution models.

Use when planning an astronomical observing campaign — selecting target list, scheduling observations around constraints (sky brightness, airmass, telescope time), estimating exposure times, and designing a data quality assurance strategy.

Use when designing a CRISPR-Cas9 (or Cas12/Cas13) gene editing experiment — selecting guide RNAs, evaluating on-target efficiency and off-target risk, choosing delivery strategy, and designing assays to confirm editing outcome.

Use when performing serial dilutions, calculating cell plating density, determining colony forming units (CFU), or preparing drug concentration gradients for cell culture experiments.

Use when determining required sample size for a study, or evaluating whether a completed study had adequate power to detect its effect

Use when planning a biological experiment that requires controls, replication, and rigorous methodology to yield valid, reproducible results

Use when designing a clinical trial — including study type selection, randomization and blinding strategy, endpoint definition, sample size calculation, and regulatory compliance requirements for a study protocol.

Use when designing a polymerase chain reaction experiment — including primer design, thermal cycling conditions, control selection, and troubleshooting strategy to amplify a specific DNA or RNA target reliably.

Use when analyzing agarose or polyacrylamide gel electrophoresis results — to correctly identify bands, assess purity and integrity of nucleic acid or protein samples, and systematically troubleshoot unexpected results.

Use when writing a biology lab report in academic or research contexts following scientific reporting standards

Use when drafting or revising a scientific abstract for a journal article, conference submission, or thesis

Use when planning or writing a systematic review of scientific literature — following PRISMA guidelines to search, screen, extract, and synthesize evidence from primary studies with transparent, reproducible methodology.

Use when analyzing chemical equilibria — calculating equilibrium constants, predicting reaction direction using Q vs K, solving for equilibrium concentrations using ICE tables, and applying Le Chatelier's principle to manipulate equilibrium position.

Use when designing or evaluating a chemical synthesis, process, or laboratory procedure — applying the 12 Principles of Green Chemistry to reduce waste, hazards, energy consumption, and environmental impact.

Use when conducting a systematic safety inspection of a chemical laboratory or evaluating compliance with laboratory safety regulations

Use when determining the theoretical, actual, or percent yield of a chemical reaction from experimental data

Use when preparing solutions in chemistry or biochemistry — calculating molarity, molality, mass percent, dilutions, and unit conversions to make accurate reagent preparations.

Use when selecting and designing a spectroscopic analysis method (UV-Vis, IR, NMR, MS, or Raman) — including method selection, sample preparation, calibration, data interpretation, and reporting for structural identification or quantitation.

Use when planning a multi-step chemical synthesis from a target molecule back to available starting materials

Use when designing an acid-base, redox, complexometric, or precipitation titration — including titrant selection, indicator choice, endpoint detection, and standardization of solutions for accurate quantitative analysis.

Use when analyzing satellite or aerial imagery for earth science applications — including image preprocessing, spectral band selection, classification, change detection, and index calculation for land cover, vegetation, geology, or water assessment.

Use when estimating the economic value of natural ecosystems for policy decisions, environmental impact assessments, conservation investments, or natural capital accounting

Use when calculating the greenhouse gas (GHG) emissions of an activity, organization, product, or project — applying the GHG Protocol Corporate Standard or ISO 14064 to quantify Scope 1, 2, and 3 emissions in CO₂-equivalent units.

Use when an organization or community needs to identify, assess, and prioritize physical and transition climate risks to assets, operations, and finances

Use when planning a geological field survey — defining objectives, selecting mapping scale, designing sampling strategy, choosing measurement methods, and planning data collection for structural geology, stratigraphy, or mineral exploration.

Use when conducting a seismic hazard assessment for engineering design, land use planning, or risk management — including probabilistic seismic hazard analysis (PSHA), ground motion characterization, site amplification, and communication of hazard to decision-makers.

Use when designing a water quality monitoring or assessment program — for drinking water, surface water, groundwater, or wastewater — including parameter selection, sampling design, analytical methods, and regulatory compliance evaluation.

Use when a geometric problem — distance, intersection, locus, optimization, or a claim about points, lines, and curves — is better solved by assigning coordinates and manipulating algebraic equations than by classical synthetic/axiomatic proof, including distance/midpoint/slope calculations and vector-based angle, area, and plane computations.

Use when reasoning about multiple interacting uncertain variables with a known or learnable dependency structure — medical diagnosis with several correlated symptoms and risk factors, fault diagnosis across interdependent system components, or any query about one variable given evidence on several others — by factoring the joint distribution as a directed acyclic graph and running network inference, rather than treating each variable as an independent single-hypothesis update.