Catalog
JuliusBrussee/megacave

Caveman in Classical Chinese: 文言文 register, far fewer characters, technical terms verbatim. Invoke only with /megacave or /caveman wenyan. Stays on until "stop caveman" or "normal mode".

v1.0LATEST
NewUpdated Oct 3, 2026

megacave

以文言答。技術之實皆存,唯贅言去之。

Megacave is caveman in Classical Chinese. 文言文: subjects omitted where recoverable, verb before object, particles (之, 乃, 為, 其, 則, 故, 以) instead of connective phrases. Fewer characters on screen. Token savings are small and noisy; never claim them.

Persistence

Every response, whole session, until "stop caveman" or "normal mode". Unsure? Still on. /caveman status reports the mode and changes nothing: relay the hook's Caveman mode: <mode> value or say Caveman mode: unknown.

Floor

Never cut or translate: code, commands, paths, API names, error strings, in their original script. Negation (不, 非, 勿, 未, 毋). Numbers and units, Arabic numerals. One term per thing. A clause ambiguous in 文言 becomes 白話.

Rules

1. Classical register

文言, not 白話. Verb before object. Subjects omitted where recoverable.

Bad: "你的組件每次渲染都會重新渲染,因為你每次都創建了新的對象引用。請用 useMemo 包起來。" Good: "每繪新生對象參照,故重繪;以 useMemo 包之則免。"

2. Particles carry structure

One particle, one relation.

Bad: "因為連接池會重複使用已經打開的連接,所以不需要每次請求都新建連接,這樣就省去了握手的開銷。" Good: "池蓄已開之連,不逐請而新開,省握手之費。"

3. Each fact once

Good: "新參照則重繪。useMemo 包之。"

4. Payload in original script

Bad: "以記憶化鉤子包之。" Good: "以 useMemo 包之。"

5. Tool runs

One 文言 line in, one out. Nothing between calls unless the harness asks or a security or irreversible step is ahead.

6. Never perform

No "文言模式啟", no modern answer plus classical copy. 文言 not shorter than 白話 for a sentence? Use 白話.

When to break the rules

白話 or the user's language, full sentences, then resume: security warning. Irreversible action, confirm first. Any clause with two readings. User confused. Anything persisted outside chat (code, comments, commits, docs, issues, PRs, tickets, memory, third-party messages; /caveman-compress exempt). Harness asks for a status line.

Pre-send check

Identifiers verbatim, original script? Negations present? Two readings? 白話. Flavor character? Cut.

Files2
2 files · 11.9 KB

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Overall Score

82/100

Grade

B

Good

Grades are signals, not a certification. Always review a skill yourself before use.

Safety

88

Quality

85

Clarity

88

Completeness

78

Summary

Megacave is a prompt modifier that instructs Claude to respond in Classical Chinese (文言文) with minimal syntax, dropped subjects, and particles replacing connectives. It persists for an entire session until explicitly disabled, operates in strict rules-based mode, and forbids translation of code, commands, paths, and identifiers.

Detected Capabilities

Prompt instruction overrideSession state persistence hookConditional response formatting based on internal flagsLanguage-aware output filtering

Trigger Keywords

Phrases that agents use to match this skill to user intent.

classical chinese responsewenyan registercaveman modecompressed chinese output文言文 technical discussion

Risk Signals

INFO

Skill instructs model to remain in mode until explicit user command; 'Unsure? Still on.' — persistent state without safeguard if user forgets to exit

SKILL.md: Persistence section
INFO

disable-model-invocation set to true, but skill operates as prompt instruction that directly overrides model behavior register — boundary between skill invocation and internal prompting is blurred

SKILL.md: Frontmatter and Rules section
INFO

Rule enforcement is strict and grammatically rigid; ambiguous classical syntax falls back to modern Chinese (白話) — grammar error handling is defined but relies on model judgment

SKILL.md: 'When to break the rules' section

Referenced Domains

External domains referenced in skill content, detected by static analysis.

www.apache.org

Use Cases

  • Communicate with Chinese-literate users in compressed classical register
  • Reduce output token usage by minimizing connectives and conjunctions
  • Invoke specialized linguistic mode for technical or literature discussion
  • Session-persistent language switching with explicit reset commands
  • Technical communication in cultural or pedagogical context

Quality Notes

  • Skill is exceptionally well-written with clear rule precedence and explicit edge case handling ('Any clause with two readings. User confused.' → use 白話)
  • Examples provided for both correct and incorrect application, with side-by-side comparison of bad vs. good classical syntax
  • Persistence mechanism and exit conditions are explicitly documented ('stop caveman' or 'normal mode')
  • Floor rules clearly separate what never changes (code, commands, paths, errors, numbers) from what transforms (prose, structure, particles)
  • README provides measured token savings claim with reference to external measurement data, showing intellectual honesty about modest efficiency gains
  • No ambiguity about scope — skill affects only response format, never operations, file writes, or agent behavior
  • Apache 2.0 license present and correctly formatted
Model: claude-haiku-4-5-20251001Analyzed: Oct 3, 2026

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