HC

    hallucination circuit breaker

    1

    A verification-first operating system that intercepts, triages, and audits claims to prevent AI hallucinations.

    $30

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    Works with the AI tools you already use

    Claude CodeClaude CodeCursorCursorCodex CLICodex CLIGitHub CopilotGitHub CopilotGemini CLIGemini CLI+20 more
    HC

    hallucination circuit breaker

    Example session with this skill installed

    Draft a summary of the 2023 FDA approval for the drug Vyjuvek, including the specific indication and the reported list price. Apply the circuit breaker.

    • Read your context and instructions
    • Compiled the hallucination circuit breaker
    • Generated the document

    I have analyzed the claims regarding the FDA approval of Vyjuvek (beremagene geperpavec-svdt). Each claim has been triaged for consequence and verified against primary regulatory and manufacturer sources.

    Verification Report: Vyjuvek FDA Approval

    ClaimTriage RiskStatusVerification Detail
    FDA Approval Date: May 19, 2023MediumVerifiedConfirmed via FDA Press Announcement.
    Indication: Dystrophic epidermolysis bullosa (DEB)Very HighVerifiedMatches official label; specifically for wounds in patients 6 months and older.
    Mechanism: Redosing topical gene therapyMediumVerifiedConfirmed via Krystal Biotech primary documentation.
    List Price: $24,250 per vialHighVerifiedCorroborated by manufacturer pricing release (May 2023).
    First redosable gene therapy approvedHighVerifiedConfirmed by FDA "First-in-Class" designation records.

    Summary

    Vyjuvek (beremagene geperpavec-svdt) was approved by the FDA on

    May 19, 2023. It is the first topical gene therapy indicated for the treatment of wounds in patients 6 months of age and older with dystrophic epidermolysis bullosa (DEB) with mutation(s) in the collagen type VII alpha 1 chain (COL7A1) gene. The manufacturer, Krystal Biotech, announced a list price of

    $24,250 per vial.

    Confidence: 5 verified · 0 derived · 0 believed · 0 unverified (Freshness check: 2024-05-20).

    Next steps

    1. Review the full FDA prescribing information for specific dosage instructions.
    2. Verify current pharmacy benefit manager (PBM) negotiated rates, as list price does not include rebates.

    hallucination-circuit-breaker.pdf

    PDF · document

    Generated

    Example file from a real run - the skill writes it into your workspace.

    $30/mo

    Subscription · always the latest version

    • Secure checkout via Stripe
    • Cancel anytime
    • Delivered live via MCP (optional)

    What you get

    Audit technical specifications for accuracy before client delivery.Verify legal and medical citations against primary sources.Prevent phantom citations in academic and research summaries.Enforce a confidence ledger on all high-stakes business intelligence.

    About this skill

    The problem

    LLMs frequently invent hyper-specific facts, fake citations, and outdated prices with high confidence. These hallucinations are often impossible to spot until a client, lawyer, or customer complains about the inaccuracy.

    What it does

    • Intercepts every factual assertion before delivery and breaks them into a granular claim inventory.
    • Triages claims using a risk-decision table to score them based on falsifiability and consequence.
    • Applies a proportional verification ladder, ranging from arithmetic recomputation to primary-source corroboration.
    • Appends a hard confidence ledger to every response, categorizing statements as verified, derived, believed, or unverified.
    • Identifies signature hallucination patterns like phantom citations, summary invention, and category bleed.

    Why this beats prompting it yourself

    Standard prompts like "be accurate" or "check your work" are easily ignored by the model during the generation phase. This skill implements a verification-first operating system that forces the agent to audit itself as a hostile fact-checker before shipping any text. It replaces vague confidence with a disciplined, multi-phase verification protocol that the model cannot bypass.

    Use cases

    • Verifying medical, legal, or financial facts before inclusion in professional reports.
    • Auditing product specifications and pricing lists to ensure they match current vendor data.
    • Summarizing complex technical papers where compression artifacts often breed invented details.
    • Fact-checking competitive analysis to prevent "consensus fabrication" and category bleed.

    Known limitations

    If browsing tools are unavailable, the skill cannot perform external source retrieval and will default to marking memory-based facts as unverified.

    How to install

    Works the same in every agent - Claude, Cursor, Codex, Copilot and 20+ more.

    ~30 seconds
    1. 1

      Download the ZIP

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    2. 2

      Unzip into your skills folder

      Every agent reads skills from one folder on your machine. Drop the unzipped folder in there.

    3. 3

      Ask your agent to use it

      Restart the agent if it was already running. It picks the skill up automatically - no config needed.

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    Click the path to copy it. Create the folder if it does not exist yet.

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