schema-migration SKILL.md skillA
schema-migration from dosu-ai/decant is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add dosu-ai/decant/schema-migration@git:20260929.d316718Pins git:20260929.d316718 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- dosu-ai/decant
- Path
.claude/skills/schema-migration/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260929.d316718, committed Sep 29, 2026
- Size
- 2,092 bytes
- Repository stars
- 74
- License
- Apache-2.0
Change Decant's SQLite schema (tables, columns, indexes, triggers) or force a re-derive of existing archives. Use when editing src/db.ts migrations, src/schema.sql, src/schema-manifest.ts, LATEST_SCHEMA_VERSION, or INGEST_PIPELINE_REVISION.
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
# Schema migration The rules are AGENTS.md invariant 5 and the "Rebuilds and migrations" section of `docs/data-lifecycle.md`. Read both before editing. ## Rules - A migration is frozen once it is committed, because someone may already have opened an archive with that branch. Never edit an existing `if (current < N)` block, on `main` or on a feature branch; add a new one, even to fix a mistake in the previous one. - Bump `LATEST_SCHEMA_VERSION` in `src/db.ts`. Refer to that constant in docs instead of writing the number. - Guard each statement so a partially-migrated or operator-modified archive still converges (`IF NOT EXISTS`, `hasTable`, `hasColumn`), and stamp the new version in `schema_migrations` inside the same block. - `src/schema.sql` is the effective baseline for a fresh archive. Apply the same change there so a fresh archive and a migrated one produce the same `buildSchemaManifest` fingerprint; `src/schema-manifest.ts` changes only if the manifest needs to learn a new object kind. - Bump `INGEST_PIPELINE_REVISION` in `src/ingest.ts` only when unchanged source files must be re-derived. The next sync then backfills them once and later …
Read the whole file at its exact version.
How to install
mdr add dosu-ai/decant/schema-migration@sha256:88ef141d166ffaadThe line at the top of this page pins the label git:20260929.d316718, 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_6ain7vbydsomenjb)
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Versions
The registry has recorded 1 version of this file, committed on Sep 29, 2026.
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 (2092 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
dosu-ai/decant · 74 stars · license Apache-2.0 · pushed 2026-11-07 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_6ain7vbydsomenjb GET https://markdownregistry.com/api/v1/resolve?ref=dosu-ai/decant/schema-migration GET https://markdownregistry.com/api/v1/blob/88ef141d166ffaadfed9e90311e129787ee1712bbbf779100288e24d4c4dfe5a
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.