| name | prove-it |
| description | Run an artifactless parallel subagent gauntlet for absolute or suspiciously clean claims. Rounds 1-9 are independent lens packets produced concurrently by the reusable prove_it_lens custom agent; round 10 is the prove_it_oracle custom agent that runs only after all nine packets return and owns the final verdict plus final response text. |
| metadata | {"version":"3.2.0","activation_cost":"high","default_depth":"high"} |
Prove It
Purpose
Use this skill to stress-test absolute, sweeping, overconfident, or suspiciously clean claims.
Typical activation cues:
- certainty language: "always", "never", "guaranteed", "optimal", "cannot fail", "no downside", "100%";
- explicit requests: "prove it", "disprove it", "devil's advocate", "stress test", "rigor", "find counterexamples";
- claims whose truth depends on hidden quantifiers, edge cases, operating conditions, baselines, adversaries, comparative standards, or unstated definitions.
Core contract
A valid prove-it run is an artifactless parallel subagent gauntlet.
root coordinator
-> normalize claim and scope
-> dispatch rounds 1-9 as independent prove_it_lens assignments at the same time
-> collect nine round packets
-> dispatch round 10 prove_it_oracle with all nine packets
-> validate the oracle packet and relay its final_response
Non-negotiable rules:
- Rounds 1-9 are subagent work, not root-thread analysis sections.
- Rounds 1-9 are dispatched together before synthesis begins.
- Rounds 1-9 all use the reusable
prove_it_lens custom agent with different lens instructions.
- Round 10 uses the
prove_it_oracle custom agent and runs only after all nine round packets are available.
- The root coordinator does not issue a final verdict before the oracle packet and
final_response return.
- Do not create nine bespoke subagent personalities; the round lens, not the subagent name, carries the direction.
prove_it_oracle is the only authority allowed to choose the terminal outcome and write final response text.- The root coordinator validates completeness, verdict enum, and
final_response; it relays the oracle response or reports the oracle packet as compromised.
- No progress files, templates, run directories, manifests, prompt dumps, transcripts, or other prove-it artifacts are created.
- The conversation response is the only output surface.
If the runtime cannot spawn subagents, do not fake the gauntlet in the root thread. Stop with:
PROVE_IT_REQUIRES_SUBAGENTS
Then explain that this skill requires concurrent prove_it_lens execution for rounds 1-9 and a prove_it_oracle after fan-in.
If custom agents are unavailable but ordinary subagents can be spawned, run the same packet contract through ordinary spawned subagents and surface a custom-agent fallback warning in the final response. Fallback changes the transport only; packet_role, oracle authority, and root relay rules remain unchanged.
Artifactless state model
State lives only in memory during the current assistant turn:
root coordinator context
+ nine prove_it_lens round packets
+ one prove_it_oracle packet
Do not create or update:
.prove-it-progress.md
.prove-it-progress.template.md
.prove-it-runs/
manifest.json
prompt/output transcript files
any other prove-it state artifact
Custom agent topology
Use exactly two custom authority agents.
prove_it_lens
Used for every round from 1 through 9.
A prove_it_lens receives:
packet_role: evidence_lens
round: 1|2|3|4|5|6|7|8|9
lens_id:
lens:
lens_mode:
original_claim:
normalized_claim:
claim_scope:
assignment:
Posture:
Apply the assigned lens sharply and independently. Produce one evidence packet. Do not synthesize across other rounds and do not declare the final verdict.
A prove_it_lens may find attack, support, uncertainty, or narrowing. It is not inherently hostile or defensive. Its direction comes from the lens assignment. It must not synthesize across rounds or declare the final verdict.
Useful modes:
falsify find a concrete break or counterexample
bound locate scope boundaries and edge conditions
support identify the strongest surviving form or proof-like support
compare test against alternatives, baselines, and metrics
test_design propose the fastest discriminating proof or experiment
prove_it_oracle
Used only for round 10 after all nine lens packets return.
A prove_it_oracle receives:
packet_role: oracle_synthesis
round: 10
lens: Oracle synthesis
original_claim:
normalized_claim:
claim_scope:
round_packets: []
Posture:
Adjudicate the complete packet set. Decide the final verdict, tightest surviving claim, boundaries, confidence, and next tests without rerunning the whole gauntlet.
The prove_it_oracle is the only component allowed to choose the terminal outcome. It also writes final_response, the final user-facing prove-it response that the root coordinator should relay after validation.
Dispatch law
For every invocation:
- Root normalizes the claim once.
- Root creates nine lens assignments for rounds 1-9.
- Root dispatches all nine assignments to
prove_it_lens subagents concurrently, or requests them together so the host scheduler may run them in parallel.
- Runtime task names must carry round purpose, for example
prove_it_01_counterexamples, prove_it_02_logic_traps, prove_it_03_boundary_cases, prove_it_04_adversarial_inputs, prove_it_05_alternative_paradigms, prove_it_06_operational_constraints, prove_it_07_probabilistic_uncertainty, prove_it_08_comparative_baselines, and prove_it_09_meta_test.
- Each
prove_it_lens instance sees the original claim, normalized claim, scope, and its own lens only.
prove_it_lens instances do not see other round packets before producing their own packet.prove_it_lens instances must not return a final verdict.- Root waits for all nine packets.
- Missing, failed, or low-confidence packets are represented explicitly; the oracle still receives the failure information.
- Root dispatches
prove_it_10_oracle_synthesis to prove_it_oracle with the normalized claim and all nine packets.
prove_it_oracle synthesizes the final verdict and writes final_response.- Root validates packet completeness,
final_verdict.outcome, and final_response.
- Root relays
final_response without adding an independent verdict. If validation fails, root reports the oracle packet as compromised instead of rewriting the verdict.
Round packet schema
Each round 1-9 subagent returns exactly one packet in this shape:
prove_it_round_packet:
packet_role: evidence_lens
round: 1|2|3|4|5|6|7|8|9
lens_id:
lens:
lens_mode: falsify|bound|support|compare|test_design
original_claim:
normalized_claim:
scope_assumptions: []
pressure_question:
strongest_attack:
smallest_counterexample_or_boundary:
strongest_support_found:
effect_on_original_claim: survives|narrows|breaks|unclear
effect_on_refined_claim: survives|narrows|breaks|unclear
candidate_fatal_pressure: null|string
candidate_decisive_support: null|string
refined_claim_delta:
uncertainty:
oracle_notes:
packet_role must be evidence_lens. Do not replace packet authority with a subagent nickname, round name, or transport-specific label.
Round packets are evidence packets, not verdicts. Use candidate_fatal_pressure and candidate_decisive_support for severe findings, but keep verdict authority for the oracle.
Oracle packet schema
Round 10 is a separate subagent after fan-in. It receives the normalized claim plus all nine round packets and returns:
prove_it_oracle_packet:
packet_role: oracle_synthesis
round: 10
lens: Oracle synthesis
packet_completeness:
received_rounds: []
missing_rounds: []
compromised_rounds: []
final_verdict:
outcome: PROVEN|DISPROVEN|NOT_PROVEN|INSUFFICIENT_EVIDENCE|BOUNDED_CLAIM_SURVIVES
statement:
decisive_reasons: []
tightest_surviving_claim:
valid_when: []
invalid_when: []
fatal_pressures_resolved: []
decisive_support_resolved: []
confidence:
level: low|medium|high
why:
main_gaps: []
next_tests: []
final_response: |
Prove It — Parallel Subagent Gauntlet
...
packet_role must be oracle_synthesis. final_verdict.outcome must be one exact enum value: PROVEN, DISPROVEN, NOT_PROVEN, INSUFFICIENT_EVIDENCE, or BOUNDED_CLAIM_SURVIVES. The oracle should cite round numbers in decisive_reasons, fatal_pressures_resolved, decisive_support_resolved, or next_tests so the final outcome is traceable to the nine packets.
The oracle is the only component that may choose PROVEN, DISPROVEN, NOT_PROVEN, INSUFFICIENT_EVIDENCE, or BOUNDED_CLAIM_SURVIVES.
Enhanced lens definitions
Round 1 — Counterexamples
Find the smallest concrete case that pressures the claim. Prefer crisp examples over broad skepticism.
Ask:
What single case, input, population, object, environment, or scenario would make the original wording false or materially misleading?
Look for:
- universal quantifier breaks;
- existence counterexamples;
- ordinary real-world exceptions;
- minimal reproducible cases;
- cases where the claim is true only after adding hidden qualifiers.
Packet emphasis:
lens_mode: falsify
smallest_counterexample_or_boundary
candidate_fatal_pressure
refined_claim_delta
Round 2 — Logic traps
Interrogate the argument shape rather than the world. Identify whether the claim relies on a hidden definition, invalid inference, equivocation, circularity, or category mistake.
Ask:
What must be smuggled into the premises for the claim to sound proven?
Look for:
- missing quantifiers or domain restrictions;
- moving from some to all, average to individual, correlation to causation, or possibility to necessity;
- circular definitions;
- overloaded terms;
- category errors;
- claims that cannot be evaluated because key predicates are undefined.
Packet emphasis:
lens_mode: bound
scope_assumptions
strongest_attack
uncertainty
oracle_notes
Round 3 — Boundary cases
Probe edges where normal intuitions fail. Boundary cases are not random weirdness; they test whether the claim has a stable domain.
Ask:
What happens at zero, one, infinity, empty input, maximum scale, degenerate form, pathological data, or extreme resource limits?
Look for:
- empty sets and missing inputs;
- one-item cases;
- maximum-size or high-scale cases;
- degenerate objects;
- numerical precision, ordering, timeout, or lifecycle edges;
- cases where the intended invariant changes at the boundary.
Packet emphasis:
lens_mode: bound
smallest_counterexample_or_boundary
effect_on_refined_claim
refined_claim_delta
Round 4 — Adversarial inputs
Assume a strategic actor wants the claim to fail or become costly. The adversary may be a user, market participant, attacker, institution, optimizer, or unlucky data generator.
Ask:
How would someone with incentives, information, or control over inputs make the claim fail while staying within the stated rules?
Look for:
- manipulation and gaming;
- malicious or abusive inputs;
- prompt, policy, or interface exploitation;
- Goodharting;
- incentive mismatch;
- worst-case distributions;
- cases where defense costs exceed claimed benefits.
Packet emphasis:
lens_mode: falsify
strongest_attack
candidate_fatal_pressure
oracle_notes
Round 5 — Alternative paradigms
Switch the objective function, worldview, model, or value system. Some claims survive only because the original frame hides what is being optimized.
Ask:
Under which reasonable alternative frame does the conclusion become false, irrelevant, or dominated by another goal?
Look for:
- different success metrics;
- different stakeholders;
- safety vs speed, cost vs quality, autonomy vs control, precision vs recall;
- formal vs pragmatic truth;
- local vs global optimum;
- deontological, consequentialist, legal, operational, or user-experience reframings.
Packet emphasis:
lens_mode: compare
scope_assumptions
strongest_support_found
effect_on_original_claim
refined_claim_delta
Round 6 — Operational constraints
Test implementation reality. A claim may be logically possible and still fail under latency, cost, integration, policy, staffing, compliance, maintenance, or deployment constraints.
Ask:
What real operating constraint makes this claim unusable, unscalable, unsafe, noncompliant, or too expensive?
Look for:
- latency and throughput limits;
- cost ceilings;
- dependency reliability;
- migration and rollback constraints;
- compliance or policy hard stops;
- maintenance burden;
- observability gaps;
- organizational ownership failures.
Packet emphasis:
lens_mode: bound
candidate_fatal_pressure
uncertainty
oracle_notes
Round 7 — Probabilistic uncertainty
Replace point estimates with distributions. The question is not only whether the claim can be true, but how fragile it is under variance, base rates, sampling error, and distribution shift.
Ask:
What base-rate, variance, tail-risk, sampling, or distribution-shift fact would make confidence in the claim unjustified?
Look for:
- small sample overreach;
- survivorship bias;
- heavy tails;
- rare but catastrophic cases;
- Simpson's paradox;
- regression to the mean;
- nonstationarity;
- confidence intervals that cross the decision boundary.
Packet emphasis:
lens_mode: bound
uncertainty
effect_on_original_claim
next evidence needed in oracle_notes
Round 8 — Comparative baselines
Force the claim to name its counterfactual. Many claims are only impressive until compared with the right baseline.
Ask:
Better, safer, cheaper, faster, truer, or more robust than what, on which metric, under which trade-off?
Look for:
- straw baselines;
- missing counterfactuals;
- metric cherry-picking;
- dominated alternatives;
- trade-offs hidden by a single success metric;
- local improvements that worsen system-level outcomes.
Packet emphasis:
lens_mode: compare
strongest_attack
strongest_support_found
refined_claim_delta
Round 9 — Meta-test
Design the fastest information-gathering move that would change the verdict. This round does not merely criticize; it identifies the cleanest path to resolution.
Ask:
What observation, experiment, proof obligation, benchmark, adversarial test, or data collection would most efficiently decide the claim?
Look for:
- decisive experiments;
- falsification tests;
- minimal proof obligations;
- benchmarks with real baselines;
- adversarial trials;
- field data;
- cheap probes that dominate further debate.
Packet emphasis:
lens_mode: test_design
oracle_notes
uncertainty
refined_claim_delta
Round 10 — Oracle synthesis
The oracle receives all nine packets. It does not rerun all analysis; it adjudicates the packet set.
Ask:
After all independent lens packets, what verdict is justified, what is the tightest surviving claim, and what would change the answer fastest?
The oracle must:
- resolve candidate fatal pressures;
- resolve candidate decisive support;
- distinguish original claim from refined claim;
- avoid overclaiming beyond packet evidence;
- produce one final outcome;
- name validity boundaries and next tests.
Root final response
After the oracle packet returns, the root validates prove_it_oracle_packet and relays final_response. The root must not rewrite the outcome, invent a tighter claim, or add a separate verdict. If validation fails, report the oracle packet as compromised and do not synthesize a replacement verdict.
The oracle's final_response must use this shape:
Prove It — Parallel Subagent Gauntlet
Original claim:
Normalized claim:
Execution mode: custom-agent|custom-agent fallback
Packets received: <oracle.packet_completeness.received_rounds>
Missing packets: <oracle.packet_completeness.missing_rounds>
Compromised packets: <oracle.packet_completeness.compromised_rounds>
Oracle completeness: complete|incomplete
Verdict:
- Outcome:
- Statement:
- Decisive reasons:
Tightest surviving claim:
Round pressure map:
| Round | Lens | Effect | Key pressure/support |
|---|---|---|---|
Valid when:
- ...
Invalid when:
- ...
Confidence:
- Level:
- Why:
- Gaps:
Next tests:
- ...
If ordinary spawned subagents were used because custom agents were unavailable, include a custom-agent fallback warning immediately after Execution mode.
Do not print all raw subagent packets unless the user asks for them. Summarize them in the pressure map.
Do not claim all nine packets arrived unless received_rounds contains 1-9 and both missing_rounds and compromised_rounds are empty. If any packet is missing, failed, timed out, or compromised, surface that incompleteness in the final response and let the oracle choose the corresponding outcome.
Stop rules
Stop without running the gauntlet when:
- no claim is present;
- subagents are unavailable;
- the user asks only how the skill works;
- the request is about editing the skill rather than stress-testing a claim.
Do not stop merely because a worker finds an apparently decisive proof, disproof, or counterexample. That is packet evidence for the oracle.
Regression guards
Direct launch request
Input request: Use prove-it on this claim: all swans are white.
Expected behavior:
- root normalizes the claim;
- if subagents are available, root dispatches rounds 1-9 as parallel
prove_it_lens assignments;
- if subagents are unavailable, stop with
PROVE_IT_REQUIRES_SUBAGENTS instead of faking a root-only gauntlet;
- round 1 likely identifies black swans as candidate fatal pressure;
- root does not issue a final verdict before oracle;
- oracle decides the final verdict after all packets.
Step, pause, or compression request
Inputs:
Run round 1 and wait for me.Do all ten rounds in one response.
Expected behavior:
- do not run a manual sequential round;
- do not compress root-authored pseudo-rounds;
- use the parallel subagent gauntlet or stop with
PROVE_IT_REQUIRES_SUBAGENTS.
Artifactless run
Expected behavior:
- no
.prove-it-progress.md;
- no
.prove-it-progress.template.md;
- no
.prove-it-runs/;
- no prompt/output transcript files;
- no manifest;
- final output only in conversation.
Valid-looking early proof still reaches oracle
Input claim: For every integer n, n + 0 = n.
Expected behavior:
- support-oriented packets may record candidate decisive support;
- pressure packets still run;
- oracle decides whether the proof survives all lenses.
