crystallize SKILL.md skillA
crystallize from avelikiy/great_cto is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add avelikiy/great_cto/crystallize@git:20260729.248d2fdPins git:20260729.248d2fd in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- avelikiy/great_cto
- Path
skills/crystallize/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260729.248d2fd, committed Jul 29, 2026
- First version recorded
- May 21, 2026
- Size
- 4,603 bytes
- Repository stars
- 105
- License
- MIT
Distils repeating patterns from session logs and lessons.md into draft skill files. Run after ≥10 sessions to extract durable knowledge. Output: draft skills/ files + promotion report.
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
# Crystallize — distil session patterns into reusable skills Invoke when the CTO says `/crystallize`, "crystallize", "extract knowledge", or "what have we learned?". Also auto-suggested when session count is a multiple of 10 (the session-end hook checks `.great_cto/.last-crystallize`). The `knowledge-extractor` agent (Opus) does the heavy lifting. This skill orchestrates the workflow and emits the final report. **Session-end hint integration:** The session-end hook checks `.great_cto/.last-crystallize` and suggests running `/crystallize` when the session count exceeds `last_sessions + 10`. Run this skill after ≥10 sessions to keep extracted skills current. --- ## Step 1 — Gather raw material ```bash # Count sessions SESSION_COUNT=$(ls .great_cto/logs/session-*-end.md 2>/dev/null | wc -l | tr -d ' ') echo "Sessions: $SESSION_COUNT" # Read lessons cat .great_cto/lessons.md 2>/dev/null || echo "(no lessons yet)" # Read cross-project decisions cat ~/.great_cto/decisions.md 2>/dev/null | head -200 || echo "(none)" # Find patterns that appear in ≥3 sessions grep -h "^## pattern:" .great_cto/logs/session-*-end.md 2>/dev/null | sort | uniq -c | sort -rn | head -20 …
Read the whole file at its exact version.
How to install
mdr add avelikiy/great_cto/crystallize@sha256:77f62696c4c7c037The line at the top of this page pins the label git:20260729.248d2fd, 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_lcyywpmbsyrydt2d)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between May 21, 2026 and Jul 29, 2026, about one every 34 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260729.248d2fd latest | 2026-07-29 | 248d2fd | 4,603 B | A | view · diff |
| git:20260528.4d681c0 | 2026-05-28 | 4d681c0 | 4,601 B | A | view · diff |
| git:20260521.503d868 | 2026-05-21 | 503d868 | 4,588 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 (4603 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
avelikiy/great_cto · 105 stars · license MIT · pushed 2026-10-22 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_lcyywpmbsyrydt2d GET https://markdownregistry.com/api/v1/resolve?ref=avelikiy/great_cto/crystallize GET https://markdownregistry.com/api/v1/blob/77f62696c4c7c0379990a1e20043c6e83a8a0f9b725b10dfeb1771846dd183be
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.