future-only SKILL.md skillA
future-only from swyxio/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add swyxio/skills/future-only@git:20260807.ab2a786Pins git:20260807.ab2a786 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- swyxio/skills
- Path
future-only/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260807.ab2a786, committed Aug 7, 2026
- Size
- 1,640 bytes
- Repository stars
- 194
- License
- MIT
Prefer the clean future product contract over legacy or backward compatibility. Use when the user invokes $future-only, says the product is preproduction or has no users, permits breaking changes, or explicitly says not to preserve legacy APIs, schemas, data, migrations, configuration, behavior, or tests.
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
# Future Only Treat the intended future behavior as the only supported contract. - Proactively find and remove compatibility shims, deprecated routes, fallback fields, adapters, aliases, dual-write paths, adoption logic, and tests that exist only for obsolete behavior. - Prefer one canonical API, schema, configuration, and implementation. Update all in-repository callers together. - Treat preproduction data as disposable. Prefer a fresh baseline, reset, or seed path over backfills, upgrade ladders, historical migration replay, or parallel schemas. - Delete obsolete coverage only after distinguishing it from tests that still prove current authorization, correctness, security, or user-visible behavior. - Update active documentation and tooling so they describe only the surviving contract. Historical records may remain clearly historical. - Do not add a compatibility layer merely to reduce the diff or make old tests pass. …
Read the whole file at its exact version.
How to install
mdr add swyxio/skills/future-only@sha256:4052782e589f95f2The line at the top of this page pins the label git:20260807.ab2a786, 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_l2po4daspqat6mxf)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Aug 7, 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 (1640 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
swyxio/skills · 194 stars · license MIT · pushed 2026-11-03 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_l2po4daspqat6mxf GET https://markdownregistry.com/api/v1/resolve?ref=swyxio/skills/future-only GET https://markdownregistry.com/api/v1/blob/4052782e589f95f2c96620dbaff07981cf1358ec1b5207b8ae1ac9ccdaa3c8d4
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.