t4-agent-memory SKILL.md skillA
t4-agent-memory from xenodeve/xeno-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add xenodeve/xeno-skills/t4-agent-memory@git:20260819.03952bePins git:20260819.03952be in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- xenodeve/xeno-skills
- Path
skills/t4/t4-agent-memory/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260819.03952be, committed Aug 19, 2026
- First version recorded
- Jul 13, 2026
- Size
- 15,412 bytes
- Repository stars
- 2
- License
- MIT
Use when working as the primary coding agent in a T4-team repo (T4 Labs / Slow-Inc) and you need durable memory across sessions and context-compaction — at session start (what's the open work, what did past sessions decide), after shipping or learning something worth persisting, or when open work is scattered across issues, ADRs, and MD files. Covers the team memory vault, the open-work ledger, the ship log, the survey-provenance cache, and Serena code memories. Triggers include…
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
# T4 Agent Memory ## Overview In a T4 repo the **agent is the primary coder**, and an agent's binding constraint is its context window — it loses everything on compaction and between sessions. So the repo's memory files are not team paperwork; they are the agent's **durable working memory**. This skill is how to read and write that memory efficiently. **Core principle: retrieval-first.** Store memory so a future agent can pull the *one relevant slice* into a fresh context — never so it must load a giant file to find one fact. An index you skim + linked detail you open on demand beats one append-only wall of text every time. The whole-file scan is the failure mode; the index-then-open is the pattern. ## The memory layers Each layer exists because it answers a different question, and each is structured so you retrieve a slice, not the whole. | Layer | Answers | Retrieval unit | Read it when | |---|---|---|---| …
Read the whole file at its exact version.
How to install
mdr add xenodeve/xeno-skills/t4-agent-memory@sha256:96036e592feabbc7The line at the top of this page pins the label git:20260819.03952be, 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_4433u3rwidg524l2)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Jul 13, 2026 and Aug 19, 2026, about one every 9 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260819.03952be latest | 2026-08-19 | 03952be | 15,412 B | A | view · diff |
| git:20260819.485b777 | 2026-08-19 | 485b777 | 14,033 B | A | view · diff |
| git:20260812.5547089 | 2026-08-12 | 5547089 | 12,167 B | A | view · diff |
| git:20260718.2cda7e1 | 2026-07-18 | 2cda7e1 | 7,918 B | A | view · diff |
| git:20260713.89ec2dd | 2026-07-13 | 89ec2dd | 7,790 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 (15412 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
xenodeve/xeno-skills · 2 stars · license MIT · pushed 2026-10-12 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_4433u3rwidg524l2 GET https://markdownregistry.com/api/v1/resolve?ref=xenodeve/xeno-skills/t4-agent-memory GET https://markdownregistry.com/api/v1/blob/96036e592feabbc7b16c2b1c0e809e9329619b753a87b4478ab5d93687d9f564
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.