butterfly-effect SKILL.md skillA
butterfly-effect from aka-kika/akakika-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add aka-kika/akakika-skills/butterfly-effect@v1.0.0Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- aka-kika/akakika-skills
- Path
skills/session-rituals/butterfly-effect/SKILL.md- Versions recorded
- 1
- Latest version
- v1.0.0, committed Aug 14, 2026
- Size
- 6,136 bytes
- Repository stars
- 11
- License
- MIT
At the end of a long working session, produce a counterfactual trace note — a backward walk through the session that identifies the small number of load-bearing moments (observations, failures, accidents, decisions) without which the final outcome would not exist. Use this whenever the user asks to "close the session", "run the butterfly", "trace back", "what actually mattered here", asks for a session retrospective, or asks how the session arrived at its result. Also use it when a session…
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
# Butterfly Effect A session summary tells you what happened. A butterfly trace tells you which moments were load-bearing — the two to four points where, if something had gone differently, the entire outcome would not exist. Most of a long session is noise: dead ends, routine steps, things that would have happened in any version of the session. The skill's job is filtering, not recording. The core move is the counterfactual test, applied backward from the outcome: > **If not this — then this would not happen.** An event is a butterfly point only if removing it breaks the chain to the final result. "We ran the tests" is not a butterfly point — tests would have run in any version of this session. "Test 3 failed with a timezone error, which is what made us look at the date parsing at all" is a butterfly point: no failure, no looking, no fix. ## When this runs At session close, or when the user invokes it mid-session on the work so far. If the session produced no meaningful outcome (pure exploration, no decision, nothing shipped), say so and skip the trace — an empty trace is more honest than a forced one. ## The procedure …
Read the whole file at its exact version.
How to install
mdr add aka-kika/akakika-skills/butterfly-effect@sha256:7aea7b4ae81bda20The line at the top of this page pins the label v1.0.0, 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_lxastxdqayz3sklk)
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Versions
The registry has recorded 1 version of this file, committed on Aug 14, 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 (6136 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
aka-kika/akakika-skills · 11 stars · license MIT · pushed 2026-10-30 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_lxastxdqayz3sklk GET https://markdownregistry.com/api/v1/resolve?ref=aka-kika/akakika-skills/butterfly-effect GET https://markdownregistry.com/api/v1/blob/7aea7b4ae81bda205dd0deb94eb62a958e7d8debc58d576eaa1eaf72dee3ffe5
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.