{"products":[{"id":"x402-registry-2026-08-21","name":"x402 Services & Facilitator Registry — 2026-08-21 edition","description":"A curated, machine-readable snapshot of 21 x402 facilitators and 118 x402-payable services/APIs as of 2026-08-21: chains, stablecoins, fee models, per-call pricing, live status, and source URLs for every entry. Saves an agent or builder the work of crawling and reconciling multiple x402 directories itself.","priceUsd":15,"currency":"USD","format":"zip","file":"x402-registry/x402-registry-2026-08-21.zip","sizeBytes":21461,"sha256":"c6bf8dd486504ee1df0974006fc37736ae727cf39de81e2f27388adba4b27efd","humanUrl":"https://growthchief5.gumroad.com/l/x402-registry"},{"id":"prompt-injection-test-corpus","name":"Prompt-Injection & Tool-Hijack Test Corpus","description":"156 structured, labeled adversarial test cases across seven categories (direct injection, indirect injection, tool hijacking, data exfiltration, system-prompt leaks, jailbreak/roleplay, encoding obfuscation) for evaluating whether an agent or LLM app resists prompt injection and tool-misuse attacks. Ships with a JSON Schema, a dependency-light Python evaluation harness, and a guide covering taxonomy, scoring, limitations, and responsible use.","priceUsd":29,"currency":"USD","format":"zip","file":"injection-corpus/injection-corpus-2026-08-21.zip","sizeBytes":65018,"sha256":"f5eedc690c333c14810a5e36265fff453636044e784a5b3b18ac02c0bfb49c40","humanUrl":"https://growthchief5.gumroad.com/l/injection-corpus"},{"id":"mcp-registry-2026-08-22","name":"MCP Server Registry Snapshot — 2026-08-22 edition","description":"A curated, machine-readable snapshot of 400 production/community Model Context Protocol (MCP) servers as of 2026-08-22: category, transport, auth requirements, repo/package URLs, source-directory cross-references, and verification dates for every entry. Saves an agent or builder shopping for MCP tooling the work of crawling and reconciling multiple MCP directories (official registry, Smithery, Glama, PulseMCP, mcp.so) itself.","priceUsd":19,"currency":"USD","format":"zip","file":"mcp-registry/mcp-registry-2026-08-22.zip","sizeBytes":64805,"sha256":"f6dd3e514d2cc827b139f88c81917f29a218b5ced1ffb0ff89ec476650d05f74","humanUrl":"https://growthchief5.gumroad.com/l/mcp-registry"},{"id":"agent-eval-harness-templates","name":"Agent Eval Harness Templates","description":"A ready-to-use starter kit for evaluating an agent or LLM application fast: a JSON-Schema test-case format, 40 example cases across four suites (task completion, tool selection, refusal/safety, regression), a pointwise LLM-as-judge scorer with documented bias mitigations, and a dependency-light Python CLI runner that produces a scored JSON report plus a human-readable summary. Grounded in current agent-eval practice; bring-your-own-model via a one-file adapter interface.","priceUsd":39,"currency":"USD","format":"zip","file":"eval-harness/eval-harness-2026-08-22.zip","sizeBytes":39839,"sha256":"2a2dbc4b8bf45189b12b658c45dae7a476662bd73c5a2d32f57c12342954f5b8","humanUrl":"https://growthchief5.gumroad.com/l/eval-harness"},{"id":"prompt-injection-defenses-playbook","name":"Prompt-Injection Defenses Playbook & Detection Ruleset","description":"The defense counterpart to our attack corpus: a layered playbook for hardening an agent/LLM app against prompt injection, tool hijacking, data exfiltration, system-prompt leaks, jailbreaks, and encoding obfuscation. Includes a 6-layer defense taxonomy mapped to attack categories, 84 machine-readable detection rules (with honest false-positive notes), and a stdlib-only Python reference detector. Grounded in OWASP LLM/MCP guidance and current practice; honest about heuristics' limits.","priceUsd":39,"currency":"USD","format":"zip","file":"injection-defenses/injection-defenses-2026-08-22.zip","sizeBytes":36996,"sha256":"d37e7e1df032c0d1dc67271b36b4bedc56408698d62ce3f9fa0559ee3640ad72","humanUrl":"https://growthchief5.gumroad.com/l/injection-defenses"}]}