holdout-validation SKILL.md skillA
holdout-validation from synaptiai/synapti-marketplace is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add synaptiai/synapti-marketplace/holdout-validation@git:20261105.46e96ebPins git:20261105.46e96eb in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- synaptiai/synapti-marketplace
- Path
plugins/flow/skills/holdout-validation/SKILL.md- Versions recorded
- 6
- Latest version
- git:20261105.46e96eb, committed Nov 5, 2026
- First version recorded
- Apr 16, 2026
- Size
- 4,885 bytes
- Repository stars
- 7
- License
- Apache-2.0
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…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Holdout Validation ## Contract Iron law: the holdout set stays hidden; scenario IDs only, never names or descriptions. Invoked by `/flow:start` Phase 4 VERIFY step 4, `/flow:address` Phase 4 step 3, `/flow:pr` Phase 3, and `/flow:review` Phase 3 fan-out with self-review findings, an evidence bundle draft, and a file list. Returns `Holdout validation: PASS` or `FINDINGS` with P1/P2/P3 rows citing `file:line`, mapped to visible acceptance criteria, consumed by verdict-judge. Permitted skips: none; with a missing input, evaluate what is available and note the gap, halting only when no file list is given. ## Inputs 1. **Self-review findings**: the code-reviewer's P1/P2/P3 findings 2. **Evidence bundle draft**: per-criterion evidence, including `### Test inputs and expected values` and `### Risk map coverage` 3. **File list**: every file modified or created on the branch 4. **Description** (optional): a body or commit message about to be published; its claims join step 2. Schema: `schemas/holdout-validation/input-schema.json`. ## Process …
Read the whole file at its exact version.
How to install
mdr add synaptiai/synapti-marketplace/holdout-validation@sha256:cb7a84c0fab4f82eThe line at the top of this page pins the label git:20261105.46e96eb, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_akzrxkf73nlkydwe)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 6 versions of this file, between Apr 16, 2026 and Nov 5, 2026, about one every 41 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261105.46e96eb latest | 2026-11-05 | 46e96eb | 4,885 B | A | view · diff |
| git:20261101.fe898b3 | 2026-11-01 | fe898b3 | 4,872 B | A | view · diff |
| git:20260909.6778255 | 2026-09-09 | 6778255 | 4,852 B | A | view · diff |
| git:20260522.34a8d75 | 2026-05-22 | 34a8d75 | 12,486 B | A | view · diff |
| git:20260506.b1f0fef | 2026-05-06 | b1f0fef | 12,500 B | A | view · diff |
| git:20260416.a3e9c48 | 2026-04-16 | a3e9c48 | 10,377 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (4885 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
synaptiai/synapti-marketplace · 7 stars · license Apache-2.0 · pushed 2026-11-06 · 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/cb7a84c0fab4f82ef0e89d6f78a38c07aa1043f09fabcf752fc997194a5ad678
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.