Goal: Evaluate product opportunities before implementation commitment. Start from observable demand and a reachable acquisition path, eliminate weak candidates early, and recommend one low-cost validation step without manufacturing market precision.
Execution contract: The checklist defines completion. Track each item internally as PENDING, PROVEN with evidence, CLEARED with evidence its condition is absent, or UNPROVEN with a gap; reading, delegation, tool failure, a zero exit status, or a self-reported success is not proof; only the observed outcome is. Reconcile after each section. Before returning, resolve all PENDING, count only PROVEN and CLEARED, and apply verdict and approval rules to every gap.
Preserve intent, scope, and existing authorization. Continue authorized work; ask only for consequential unresolved choices or required external approval. When no one can answer during the run, state the exact question and apply the skill's verdict for the remaining gap instead of waiting or guessing. Scale depth to material risk without skipping checks. Preserve dependency and safety order; otherwise choose an appropriate verification method.
Accept equivalent user or repository evidence; no other skill, named artifact, or complete lifecycle is required. Preserve source requirement and decision IDs. Bind reused evidence to relevant source versions, dirty changes, configuration, and environment; invalidate only affected claims.
On continuation, reconcile task, authorization, current state, and unresolved evidence. For long work, return a compact continuation record or update an already authorized artifact; read-only skills do not persist it. Distinguish artifact readiness, verified behavior, and external-action authority.
Prepare authorized work before required approval. If blocked by an instruction, cite its exact source and unresolved boundary; do not invent approval gates from caution.
Tool Routing
Need
Preferred tool
Use it when
Fallback
Product and constraints
User context plus existing product, analytics, customer, and strategy documents
Establishing audience, assets, channels, economics, and non-goals
State assumptions and request only consequential missing intent
Current demand and acquisition
Web research, trend or marketplace data, communities, reviews, ads, directories, and primary customer evidence
Every external market claim that affects elimination or recommendation
Mark the signal unavailable; never infer a number from search-result count
Competition and pricing
Competitor product pages, pricing, release history, distribution channels, reviews, and public filings where relevant
Establishing substitutes, willingness-to-pay signals, and credible differentiation
Use qualitative evidence with explicit confidence
Feasibility and validation cost
Existing capabilities, public APIs, regulations, platform rules, and current official documentation
Comparing the cheapest credible experiment and major blockers
Label estimates and name the evidence still required
Keep the evaluation read-only. Do not create project files, roadmaps, Epics, Stories, implementation plans, campaigns, listings, advertisements, or customer outreach.
Evidence Classes
Class
Meaning
MEASURED
Direct analytics, transactions, experiments, or instrumented observations with known method and date
REPORTED
A primary source reports a value or behavior, but the underlying measurement is not independently available
ESTIMATED
A stated model based on explicit inputs and assumptions
INFERRED
A qualitative conclusion from observable proxies
UNKNOWN
Evidence is unavailable, stale, incomparable, or too weak to support a decision
Do not turn REPORTED, ESTIMATED, or INFERRED evidence into a measured market size, search volume, conversion rate, revenue, or willingness-to-pay claim. Date every external source and distinguish the event date from the publication date when they differ.
Treat the creator thesis, intended experience, taste, and conviction as owner preferences and strategic-fit inputs, never as demand, acquisition, or willingness-to-pay evidence.
Checklist
1. Frame the Decision
Resolve the existing product or capability, target users, creator thesis, intended experience, decision horizon, available assets, geographic or regulatory scope, constraints, and explicit non-goals.
Accept user-supplied candidates or generate a bounded set of materially distinct opportunities from product context and current signals; do not create cosmetic variants of one idea.
Define what would justify deeper validation: identifiable user and problem, observable demand, reachable channel, credible value exchange, differentiating wedge, and affordable experiment.
Separate discovery of a new direction from prioritization of already committed work or implementation planning.
Record assumptions that can reverse the recommendation, separate researchable facts from owner preference, and ask one concise question only when different interpretations materially change the candidates or experiment.
2. Collect One Evidence Bundle per Candidate
Identify who experiences the problem, how they solve it today, what triggers active search or purchase, and what evidence shows the pain is recurring or costly.
Find a reachable acquisition channel and its mechanism: query, marketplace category, integration ecosystem, community, partner, outbound audience, or another observable path.
Inspect direct competitors, substitutes, do-nothing behavior, pricing, positioning, distribution, review complaints, and evidence of continued investment or abandonment.
Examine economic signals without inventing unit economics: price anchors, budget owner, purchase frequency, switching cost, delivery cost, platform fees, and support burden.
Identify implementation, data, dependency, regulation, trust, distribution, and operational blockers that affect the cost of a validation experiment.
Capture source/date, evidence class, scope, confidence, contradictions, and decision impact. Trace reused statistics and syndicated reports to their origin; correlated copies are one signal, not independent corroboration.
Stop researching a candidate once the evidence is sufficient to eliminate it or additional sources cannot change its status.
3. Apply Evidence-First Elimination
Eliminate a candidate when evidence contradicts a necessary viability condition or shows no feasible validation path within the stated constraints. Missing public data alone defers the candidate to UNKNOWN under the rule below.
Treat competitor presence as a lead on demand and constraints; verify usage or purchase signals rather than assuming a listing proves demand. Require a concrete wedge against substitutes and doing nothing.
Do not use universal thresholds for search volume, competitor count, ARPU, market size, or MVP duration.
Preserve candidates with weak public data as UNKNOWN rather than labeling them invalid when a cheap primary experiment can resolve the uncertainty.
Record the decisive evidence and falsification condition for every eliminated candidate so rejection is reproducible.
Only after external viability, ask whether the owner is willing and able to pursue the audience, channel, operating model, and validation effort; do not infer personal interest.
4. Compare Survivors and Choose the Next Experiment
Compare survivors on evidence strength, problem severity, channel reachability, differentiation, economics, validation cost, strategic fit with the creator thesis and intended experience, and reversibility without collapsing them into a fake composite score.
Preserve meaningful disagreements and sensitivity: show which assumption would cause another candidate to become preferable.
Select one primary recommendation only when its evidence is materially stronger for the stated goal; otherwise return INCONCLUSIVE.
Define the cheapest credible validation experiment that tests the weakest decisive assumption through observed behavior rather than stated purchase intent alone.
Specify experiment audience, channel, offer or prototype, success and failure evidence, budget or time boundary, safety constraints, and stop rule without pretending to know the result.
Prefer reversible tests such as concierge delivery, prototype usage, pricing or preorder intent with appropriate disclosure, channel response, or integration demand before implementation commitment.
5. Validate and Report
Reconcile consequential external claims with the collected primary-source evidence; refresh only stale, contradicted, or decision-critical unsupported claims, and label weaker evidence explicitly.
Separate facts, estimates, inferences, owner preferences, and unresolved unknowns in the final result.
Keep the recommended opportunity, falsification condition, and experiment evidence distinct from an approved product requirement or commitment to build.
Use RECOMMEND <candidate> only when the candidate has a credible demand signal, reachable channel, differentiating path, plausible value exchange, and executable validation experiment.
Use INCONCLUSIVE when candidates remain plausible but evidence cannot select among them or a cheap experiment is required; use DO_NOT_PURSUE only when evidence eliminates every candidate within scope.
Use BLOCKED when the decision lacks product context, candidate scope, lawful research access, or a safe validation boundary.
Reconcile recommended, eliminated, and deferred candidates against their evidence; report the proposed next experiment without creating files or executing it.
Self-Check
Reconcile before returning. Check item-level evidence, requirement coverage, contradictions, scope, verdict, and applicable cleanup. Correct the report or authorized artifacts. Reuse valid evidence; do not automatically rescan the repository or rerun successful commands. Repeat checks only for relevant changes, failures, or unresolved evidence. Disclose remaining gaps.
Output Contract
Report in the user's language, in this order; label all five fields and state each fact once. Use controlled plain language: one fact per sentence, usually under 20 words, active voice, and one term per concept, with no synonyms for verdicts, IDs, or states. Small results may use one line per field; omit empty tables and do not copy linked artifacts:
Result: The exact skill-specific verdict token first, then the supported outcome.
Scope: Reviewed/changed scope, exclusions, baseline, and material assumptions.
Evidence: Skill-specific fields below; distinguish facts, inferences, and unverified claims. Link artifacts; use tables when useful.
Verification: Checks/results, unavailable evidence, and applicable cleanup/external state.
Completion:Checklist: X/Y complete; Incomplete: None or each UNPROVEN item's reason, outcome impact, and exact next action; residual risks and required decisions.
Skill-specific evidence: Product, audience, candidates, constraints, and creator thesis separated from market evidence. Compare demand, channel, substitutes/wedge, economics, validation cost, source/date/class, and confidence. For eliminated or deferred candidates give decisive evidence or unknown and falsification/resolution condition. State the recommendation or inconclusive rationale and the proposed experiment contract, budget, stop rule, and decision-changing evidence; do not execute outreach or experiments.
Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a skill from scratch, edit, or optimize an existing skill, run evals to test a skill, benchmark skill performance with variance analysis, or optimize a skill's description for better triggering accuracy.
Quality audit of a whole repo: bugs, security holes, what breaks under real load, risky code without tests, slow paths, and what to delete, merge or split. Ranked, each finding explained in plain English. One-shot report, changes nothing. Use for "audit this codebase", "review the whole repo", "find bloat", "what can I delete", /ponytail-audit.
Automates CI/CD pipeline setup. Use when setting up or modifying build and deployment pipelines. Use when you need to automate quality gates, configure test runners in CI, or establish deployment strategies.
Refines raw ideas into sharp, actionable concepts through structured divergent and convergent thinking. Use when an idea is still vague, when you need to stress-test assumptions before committing to a plan, or when you want to expand options before converging on one. Triggers on "ideate", "refine this idea", or "stress-test my plan".