deprecation SKILL.md skillA
deprecation from ericrisco/rsc-harness is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add ericrisco/rsc-harness/deprecation@git:20261003.f0c84d6Pins git:20261003.f0c84d6 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- ericrisco/rsc-harness
- Path
skills/deprecation/SKILL.md- Versions recorded
- 2
- Latest version
- git:20261003.f0c84d6, committed Oct 3, 2026
- First version recorded
- Aug 6, 2026
- Size
- 7,268 bytes
- Repository stars
- 236
- License
- MIT
Use when retiring a public API, feature, integration, service or legacy path without abandoning consumers. Inventories usage, classifies advisory vs compulsory migration, ships compatibility/tooling, assigns owners and gates removal on evidence. NOT live schema expand-contract (`db-migrations`), NOT replacement API design (`api-design`).
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
# deprecation — removal is a consumer migration Deprecation is not a date in a changelog. It is the controlled transfer of real consumers from an old contract to a supported replacement, followed by evidence that removal no longer breaks anyone important. This skill owns the cross-consumer program. It delegates the replacement interface to `../api-design/SKILL.md`, live schema mechanics to `../db-migrations/SKILL.md`, release/version mechanics to `../git-workflow/SKILL.md`, and rollout/rollback execution to `../deployment/SKILL.md`. ## The retirement sequence ```text INVENTORY → CLASSIFY → ENABLE → NOTIFY → MIGRATE → OBSERVE → REMOVE ``` ### 1. INVENTORY the contract and consumers Identify: - exact endpoints, events, schemas, flags, SDK methods, jobs, services and docs being retired; - internal and external consumers, owners and contractual notice periods; - traffic/usage by consumer, version and operation; - data written only by the old path and compatibility obligations; - support, reseller or offline consumers invisible to runtime telemetry; - current fallback and restoration options. …
Read the whole file at its exact version.
How to install
mdr add ericrisco/rsc-harness/deprecation@sha256:9e3da30cf9e1d059The line at the top of this page pins the label git:20261003.f0c84d6, 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_yjem6y7k6s35qz5l)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Aug 6, 2026 and Oct 3, 2026, about one every 58 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261003.f0c84d6 latest | 2026-10-03 | f0c84d6 | 7,268 B | A | view · diff |
| git:20260806.2c14dfb | 2026-08-06 | 2c14dfb | 7,123 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 (7268 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
ericrisco/rsc-harness · 236 stars · license MIT · pushed 2026-10-21 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_yjem6y7k6s35qz5l GET https://markdownregistry.com/api/v1/resolve?ref=ericrisco/rsc-harness/deprecation GET https://markdownregistry.com/api/v1/blob/9e3da30cf9e1d0595d1b544bbdaf04f7c701b6c66bac355099b6dc142b6f6f6d
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.