synaptiai/synapti-marketplace · plugins/flow/skills/holdout-validation/SKILL.md

holdout-validation skillA

holdout-validation is agent-read markdown (skill) from synaptiai/synapti-marketplace: Cross-reference agent self-review claims and evidence-bundle entries against actual file state using hidden holdout scenarios, producing P1/P2/P3 findings mapped to visible acceptance criteria only. Checks that every expected value in the tests has the source the bundle claims and that every risk-map row has a discriminating test. Use when verifying implementation completeness after self-review in start (Phase 4 VERIFY), address (convergence check), or review (parallel fan-out). This skill MUST .

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add synaptiai/synapti-marketplace/holdout-validation@git:20260909.6778255
Exact content
mdr add synaptiai/synapti-marketplace/holdout-validation@sha256:71206b6d95a7cee0

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_akzrxkf73nlkydwe.svg)](https://markdownregistry.com/a/art_akzrxkf73nlkydwe)

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Versions

versioncommittedcommitsizeaudit
git:20260909.6778255 latest2026-09-09 6778255 4,852 BA view · diff
git:20260522.34a8d752026-05-22 34a8d75 12,486 BA view · diff
git:20260506.b1f0fef2026-05-06 b1f0fef 12,500 BA view · diff
git:20260416.a3e9c482026-04-16 a3e9c48 10,377 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (4852 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

synaptiai/synapti-marketplace · 6 stars · license Apache-2.0 · pushed 2026-09-11 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_akzrxkf73nlkydwe
GET https://markdownregistry.com/api/v1/resolve?ref=synaptiai/synapti-marketplace/holdout-validation
GET https://markdownregistry.com/api/v1/blob/71206b6d95a7cee0df938ac5f211c367e79720d950047c8ad0de011855b2b3fe