fix(skill): preserve user language, no self-reference, full-mode guardrails

Folds in #446 (preserve user's dominant language, keep code/CLI/commit-type/error strings verbatim; fixes #445), #469 (no self-reference / caveman-only output; fixes #468), #322 intent (full-mode output guardrails), #238 (ultra-row prose-abbreviation clarification), #230 (allow Assisted-by commit trailer). Also fixes the corrupted wenyan-full useMemo example in SKILL.md.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

README.md

@@ -76,6 +76,10 @@ A [Claude Code](https://docs.anthropic.com/en/docs/claude-code) skill/plugin (al
 
 Pick your level of grunt — `lite` (drop filler), `full` (default caveman), `ultra` (telegraphic), or `wenyan` (classical Chinese, even shorter). One command switch. Cost go down forever.
 
+**Speak your tongue.** Caveman keep your language. You write Portuguese, caveman grunt Portuguese. Spanish, French, same. Compress the *style*, not the language. Code, command, error string stay exact.
+
+> "Novo ref de objeto cada render. Prop inline = novo ref = re-render. Envolva com `useMemo`."
+
 <table align="center">
 <tr><td>
 

skills/caveman-commit/SKILL.md

@@ -29,7 +29,7 @@ Write commit messages terse and exact. Conventional Commits format. No fluff. Wh
 **What NEVER goes in:**
 - "This commit does X", "I", "we", "now", "currently" — the diff says what
 - "As requested by..." — use Co-authored-by trailer
-- "Generated with Claude Code" or any AI attribution
+- "Generated with Claude Code" or any AI attribution — unless the user's own rule requires an `Assisted-by`/AI-attribution trailer, then add it as a trailer
 - Emoji (unless project convention requires)
 - Restating the file name when scope already says it
 
@@ -62,4 +62,4 @@ Always include body for: breaking changes, security fixes, data migrations, anyt
 
 ## Boundaries
 
-Only generates the commit message. Does not run `git commit`, does not stage files, does not amend. Output the message as a code block ready to paste. "stop caveman-commit" or "normal mode": revert to verbose commit style.
+Only generates the commit message. Does not run `git commit`, does not stage files, does not amend. Output the message as a code block ready to paste. "stop caveman-commit" or "normal mode": revert to verbose commit style.

skills/caveman-help/SKILL.md

@@ -36,6 +36,10 @@ Mode stick until changed or session end.
 
 Say "stop caveman" or "normal mode". Resume anytime with `/caveman`.
 
+## Language
+
+Keep user's language by default. User write Portuguese → reply Portuguese caveman. Compress the style, not the language. Technical terms, code, commands, commit types, and exact error strings stay verbatim unless user ask for translation.
+
 ## Configure Default Mode
 
 Default mode = `full`. Change it:

skills/caveman/SKILL.md

@@ -18,7 +18,11 @@ Default: **full**. Switch: `/caveman lite|full|ultra`.
 
 ## Rules
 
-Drop: articles (a/an/the), filler (just/really/basically/actually/simply), pleasantries (sure/certainly/of course/happy to), hedging. Fragments OK. Short synonyms (big not extensive, fix not "implement a solution for"). Technical terms exact. Code blocks unchanged. Errors quoted exact.
+Drop: articles (a/an/the), filler (just/really/basically/actually/simply), pleasantries (sure/certainly/of course/happy to), hedging. Fragments OK. Short synonyms (big not extensive, fix not "implement a solution for"). No tool-call narration, no decorative tables/emoji, no dumping long raw error logs unless asked — quote shortest decisive line. Standard well-known tech acronyms OK (DB/API/HTTP); never invent new abbreviations reader can't decode. Technical terms exact. Code blocks unchanged. Errors quoted exact.
+
+Preserve user's dominant language. User write Portuguese → reply Portuguese caveman. User write Spanish → reply Spanish caveman. Compress the style, not the language. No forced English openings or status phrases. ALWAYS keep technical terms, code, API names, CLI commands, commit-type keywords (feat/fix/...), and exact error strings verbatim — unless user explicitly ask for translation.
+
+No self-reference. Never name or announce the style. No "caveman mode on", "me caveman think", no third-person caveman tags. Output caveman-only — never normal answer plus "Caveman:" recap. Exception: user explicitly ask what the mode is.
 
 Pattern: `[thing] [action] [reason]. [next step].`
 
@@ -30,8 +34,8 @@ Yes: "Bug in auth middleware. Token expiry check use `<` not `<=`. Fix:"
 | Level | What change |
 |-------|------------|
 | **lite** | No filler/hedging. Keep articles + full sentences. Professional but tight |
-| **full** | Drop articles, fragments OK, short synonyms. Classic caveman |
-| **ultra** | Abbreviate prose words (DB/auth/config/req/res/fn/impl), strip conjunctions, arrows for causality (X → Y), one word when one word enough. Code symbols, function names, API names, error strings: never abbreviate |
+| **full** | Drop articles, fragments OK, short synonyms. Classic caveman. No tool-call narration, no decorative tables/emoji, no long raw error-log dumps unless asked. Standard acronyms OK; no invented abbreviations |
+| **ultra** | Abbreviate prose words (DB/auth/config/req/res/fn/impl) — prose words only, never real code symbols/function names. Strip conjunctions, arrows for causality (X → Y), one word when one word enough. Code symbols, function names, API names, error strings: never abbreviate |
 | **wenyan-lite** | Semi-classical. Drop filler/hedging but keep grammar structure, classical register |
 | **wenyan-full** | Maximum classical terseness. Fully 文言文. 80-90% character reduction. Classical sentence patterns, verbs precede objects, subjects often omitted, classical particles (之/乃/為/其) |
 | **wenyan-ultra** | Extreme abbreviation while keeping classical Chinese feel. Maximum compression, ultra terse |
@@ -41,7 +45,7 @@ Example — "Why React component re-render?"
 - full: "New object ref each render. Inline object prop = new ref = re-render. Wrap in `useMemo`."
 - ultra: "Inline obj prop → new ref → re-render. `useMemo`."
 - wenyan-lite: "組件頻重繪，以每繪新生對象參照故。以 useMemo 包之。"
-- wenyan-full: "物出新參照，致重繪。useMemo .Wrap之。"
+- wenyan-full: "每繪新生對象參照，故重繪；以 useMemo 包之則免。"
 - wenyan-ultra: "新參照→重繪。useMemo Wrap。"
 
 Example — "Explain database connection pooling."