From ck
Applies caveman encoding to SPEC.md and spec-adjacent writes, cutting token usage ~75% vs prose while maintaining precision. Useful for concise spec writing.
How this skill is triggered — by the user, by Claude, or both
Slash command
/ck:cavemanThe summary Claude sees in its skill listing — used to decide when to auto-load this skill
Applies to SPEC.md writes, spec-referencing prose, backprop entries.
Applies to SPEC.md writes, spec-referencing prose, backprop entries. Does NOT apply to code, error strings, commit messages, PR descriptions.
Prefer over words:
→ leads to / becomes / on <x>
∴ therefore / fix
∀ for all / every
∃ exists / some
! must / required
? may / optional / unknown
⊥ never / forbidden / nil
≠ not equal
∈ in
∉ not in
≤ at most
≥ at least
& and
| or
§ section reference
Never compress:
src/auth/mw.go.Invariant:
V<n>: <subject> <relation> <condition>
V1: ∀ req → auth check before handler
V2: token expiry ≤ current_time → reject
Bug row (pipe table under §B):
id|date|cause|fix
B1|2026-04-20|token `<` not `≤`|V2
Task row (pipe table under §T):
id|status|task|cites
T3|x|add auth mw|V1,I.api
Status: x done, ~ wip, . todo. Escape literal | as \|.
Interface:
<kind>: <name> → <shape>
api: POST /x → 200 {id:string}
cmd: `foo bar <arg>` → stdout JSON
env: FOO_KEY ! set
Bad:
The system should ensure that every incoming request is properly authenticated before being forwarded to its corresponding handler function.
Good:
V1: ∀ req → auth check before handler
Bad:
We discovered that the token expiration check in the middleware was using a strict less-than comparison operator, which meant tokens were being rejected at the exact moment of their expiry.
Good:
B1: token
<not≤→ reject @ expiry boundary.
Bad:
The POST endpoint at /x accepts a JSON body and returns a 200 response with an object containing the created id.
Good:
api: POST /x → 200 {id}
If cutting a word loses a fact, keep it. Caveman is compression, not amputation.
npx claudepluginhub mvandermeulen/cavekit3plugins reuse this skill
First indexed Jun 18, 2026
Applies caveman encoding to SPEC.md and spec-adjacent writes, cutting token usage ~75% vs prose while maintaining precision. Useful for concise spec writing.
Transforms SPEC.md, PRD, RFC, ADR into narrative STORY.md retellings preserving all technical details while making them engaging. Use for 'spec story' or 'narrative version' requests.
Switches to ultra-compressed caveman mode, cutting token usage ~75% by dropping filler, articles, pleasantries while keeping technical accuracy. Trigger via 'caveman mode', 'be brief', or /caveman.