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Caveman

The most recommended of 8 coding agent plugins

People recommend it for shorter, plainer Claude replies that are quicker to read and less padded. Critics say the token savings are small and it may hurt reasoning quality.

People recommend it for shorter, plainer Claude replies that are quicker to read and less padded. Critics say the token savings are small and it may hurt reasoning quality.

92 people gave an opinion

recommend it
59
criticize it
33
approval share
64%
Each figure is one person. RecommendsCriticizes

Recommended in 7 of 13 months

  1. November 2025: not recommended
  2. December 2025: not recommended
  3. January 2026: not recommended
  4. February 2026: not recommended
  5. March 2026: not recommended
  6. April 2026: recommended
  7. May 2026: recommended
  8. June 2026: recommended
  9. July 2026: recommended
  10. August 2026: recommended
  11. September 2026: recommended
  12. October 2026: recommended
  13. November 2026: not recommended (month in progress)

Why it doesn’t carry the badge

  • 59 people recommend itNeeds 10 or more, met.
  • 1.7 recommenders for every criticNeeds 2 to 1 or better, not met.
  • Recommended in 7 of 13 monthsNeeds 4 or more, met.

The same three rules apply to every product, and the badge can’t be bought. How the badge works

What people say about it

The reasons people give, with the number of comments that give each one. Open a reason to read what they said.

Why people recommend it

Each mark is one comment

  • Shorter, quicker-to-read LLM answers

    “it will make my day not to have to read through entire essays about some trivial solution”

    Comment from 5 Apr 2026 in “Talk like caveman”

    “in the time I've actually come to like its matter-of-fact and short way of responding”

    Comment from 11 Sep 2026 in “RTK reports token savings, but our cost benchmarks disagree”

    “anecdotally I do think it saves me quite a lot of time on reading LLM outputs”

    Comment from 11 Sep 2026 in “RTK reports token savings, but our cost benchmarks disagree”
  • Terse, matter-of-fact writing style

    “in the time I've actually come to like its matter-of-fact and short way of responding”

    Comment from 11 Sep 2026 in “RTK reports token savings, but our cost benchmarks disagree”

    “I already enjoy reading its output more than vanilla so suits me well.”

    Comment from 16 Apr 2026 in “Claude Opus 4.7”

    “I've found it effective so far. Chat output isn't nearly as flowery.”

    Comment from 28 Aug 2026 in “Show HN: The load-bearing vocabulary of Claude”
  • Cuts output tokens without losing accuracy

    “tools like RTK, Headroom, caveman mode and others do reduce input and output tokens that need to be processed”

    Comment from 18 Jun 2026 in “The Token Compression Illusion: Why I'm Skeptical of RTK”

    “caveman is looking to be the only tool that actually doesn't regress on reasoning while taking costs down”

    Comment from 11 Sep 2026 in “RTK reports token savings, but our cost benchmarks disagree”

    “It also saves you tokens and it has been linked with more accuracy.”

    Comment from 14 Jul 2026 in “How to stop Claude from saying load-bearing”
  • Fun and enjoyable to use

    “It really releases the stress slightly to call bugs, buggas and generally role play a humorous setting”

    Comment from 30 Apr 2026 in “I benchmarked Claude Code's caveman plugin against "be brief."”

    “Actually tried caveman mode yesterday and it made everything SO MUCH BETTER”

    Comment from 22 Apr 2026 in “Claude Code removed from Anthropic's Pro plan”

    “I already enjoy reading its output more than vanilla so suits me well.”

    Comment from 16 Apr 2026 in “Claude Opus 4.7”

What people warn about

Each mark is one comment

  • Token savings are small or negligible

    “I tested both for weeks and they didn't really saved that much money for Opus model.”

    Comment from 10 May 2026 in “Teaching Claude Why”

    “the benchmark suggests it doesn't offer as much benefit as”

    Comment from 30 Apr 2026 in “I benchmarked Claude Code's caveman plugin against "be brief."”

    “it does not reduce the token usage really”

    Comment from 5 Apr 2026 in “Talk like caveman”
  • May hurt reasoning or accuracy

    “caveman is looking to be the only tool that actually doesn't regress on reasoning while taking costs down”

    Comment from 11 Sep 2026 in “RTK reports token savings, but our cost benchmarks disagree”

    “In real sessions it doesn’t really save much longterm and made sessions more forgetful/take longer.”

    Comment from 13 Aug 2026 in “Zed: Delta”

    “changing something like this absolutely changes the behaviour of the models responses”

    Comment from 16 Apr 2026 in “Claude Opus 4.7”
  • Caveman speech is grating

    “it takes things too far in that direction, with "cave man" speech that sucks”

    Comment from 1 Sep 2026 in “Claude Fable 5.1 and Claude Mythos 5.1”

    “caveman sounds bad and is not as easy to understand compared to normal English”

    Comment from 17 Apr 2026 in “Claude Opus 4.7 costs 20–30% more per session”

    “Now I can’t stand caveman anymore. It is really frustrating working with it.”

    Comment from 25 Jul 2026 in “A system prompt to get AI to stop pretending to be human”
  • Same as simply asking for brevity

    “for THAT value of "better" it's not much different”

    Comment from 22 Apr 2026 in “Claude Code removed from Anthropic's Pro plan”

    “turns out I never read the words that caveman omits, so to me it makes zero difference”

    Comment from 29 Apr 2026 in “I benchmarked Claude Code's caveman plugin against "be brief."”

    “You can just add "be brief" to the prompt to replace the entire plugin. Same results.”

    Comment from 3 May 2026 in “Kimi K2.6 just beat Claude, GPT-5.5, and Gemini in a coding challenge”

Other coding agent plugins people recommend

The four most recommended other coding agent plugins, with the same counts for each, so you can compare like for like. The tick on each bar marks the 2 to 1 line the badge needs.

Caveman compared with 4 alternatives
ProductRecommendCriticizeApprovalMonthsOwnedBadge
CavemanThis page593364%7——
Warcraft III Peon Voice Notifications for Claude Code31684%1——
oh-my-openagent10663%8——
Codex plugin10377%7—Approved
Compound Engineering plugin by Every90100%8——
See all 8 coding agent plugins, ranked

What people said

40 of the 101 comments that mention it, newest first. Each links to the original comment.

“its matter-of-fact and short way of responding”

RecommendsComment from 12 Sep 2026 in “RTK reports token savings, but our cost benchmarks disagree”

“When I'm using caveman (and especially cavekit), I don't have to spend quite so much energy on dealing with it building features I didn't ask for and don't want.”

RecommendsComment from 12 Sep 2026 in “RTK reports token savings, but our cost benchmarks disagree”

“in the time I've actually come to like its matter-of-fact and short way of responding”

RecommendsComment from 11 Sep 2026 in “RTK reports token savings, but our cost benchmarks disagree”

“anecdotally I do think it saves me quite a lot of time on reading LLM outputs”

MixedComment from 11 Sep 2026 in “RTK reports token savings, but our cost benchmarks disagree”

“caveman is looking to be the only tool that actually doesn't regress on reasoning while taking costs down”

MixedComment from 11 Sep 2026 in “RTK reports token savings, but our cost benchmarks disagree”

“it takes things too far in that direction, with "cave man" speech that sucks”

MixedComment from 1 Sep 2026 in “Claude Fable 5.1 and Claude Mythos 5.1”

“I've found it effective so far. Chat output isn't nearly as flowery.”

RecommendsComment from 28 Aug 2026 in “Show HN: The load-bearing vocabulary of Claude”

“it has made my Claude experience vastly better”

RecommendsComment from 20 Aug 2026 in “Clean up Claude 5's token vomit with a separate LLM”

“I want to spent less time reading.”

RecommendsComment from 13 Aug 2026 in “Zed: Delta”

“In real sessions it doesn’t really save much longterm and made sessions more forgetful/take longer.”

CriticizesComment from 13 Aug 2026 in “Zed: Delta”

“You should definitely explore caveman repo and other token-saving repositories.”

RecommendsComment from 30 Jul 2026 in “Claude Is Down”

“Now I can’t stand caveman anymore. It is really frustrating working with it.”

CriticizesComment from 25 Jul 2026 in “A system prompt to get AI to stop pretending to be human”

“It also saves you tokens and it has been linked with more accuracy.”

RecommendsComment from 14 Jul 2026 in “How to stop Claude from saying load-bearing”

“it cuts down on time spent digesting slop in general”

RecommendsComment from 14 Jul 2026 in “How to stop Claude from saying load-bearing”

“answer like a cavemen, if llm talk like cavemen, the answers become shorter and more compressed”

RecommendsComment from 9 Jul 2026 in “I Think I Have LLM Burnout”

“tools like RTK, Headroom, caveman mode and others do reduce input and output tokens that need to be processed”

RecommendsComment from 18 Jun 2026 in “The Token Compression Illusion: Why I'm Skeptical of RTK”

“pointing to resource showing caveman, rtk saving just couple bucks on $926 bill”

MixedComment from 18 Jun 2026 in “The Token Compression Illusion: Why I'm Skeptical of RTK”

“I want to see more operators try https://github.com/juliusbrussee/caveman”

RecommendsComment from 12 Jun 2026 in “AI Agent Bankrupted Their Operator While Trying to Scan DN42”

“I tested both for weeks and they didn't really saved that much money for Opus model.”

MixedComment from 10 May 2026 in “Teaching Claude Why”

“You can just add "be brief" to the prompt to replace the entire plugin. Same results.”

CriticizesComment from 3 May 2026 in “Kimi K2.6 just beat Claude, GPT-5.5, and Gemini in a coding challenge”

“Caveman only affects output tokens — thinking/reasoning tokens are untouched.”

MixedComment from 3 May 2026 in “Kimi K2.6 just beat Claude, GPT-5.5, and Gemini in a coding challenge”

“It really releases the stress slightly to call bugs, buggas and generally role play a humorous setting”

RecommendsComment from 30 Apr 2026 in “I benchmarked Claude Code's caveman plugin against "be brief."”

“It's a funny joke, but saving a couple hundred tokens in the final output is going to be negligible”

CriticizesComment from 30 Apr 2026 in “I benchmarked Claude Code's caveman plugin against "be brief."”

“the benchmark suggests it doesn't offer as much benefit as”

MixedComment from 30 Apr 2026 in “I benchmarked Claude Code's caveman plugin against "be brief."”

“turns out I never read the words that caveman omits, so to me it makes zero difference”

CriticizesComment from 29 Apr 2026 in “I benchmarked Claude Code's caveman plugin against "be brief."”

“What I appreciate is the terse answers it gives to me.”

RecommendsComment from 23 Apr 2026 in “Claude Code removed from Anthropic's Pro plan”

“for THAT value of "better" it's not much different”

MixedComment from 22 Apr 2026 in “Claude Code removed from Anthropic's Pro plan”

“Actually tried caveman mode yesterday and it made everything SO MUCH BETTER”

RecommendsComment from 22 Apr 2026 in “Claude Code removed from Anthropic's Pro plan”

“If you're enjoying this thread, you have to make a stop over here”

RecommendsComment from 20 Apr 2026 in “Claude Token Counter, now with model comparisons”

“caveman sounds bad and is not as easy to understand compared to normal English”

CriticizesComment from 17 Apr 2026 in “Claude Opus 4.7 costs 20–30% more per session”

“there are not many workarounds to minimize token usage unless you use caveman”

RecommendsComment from 17 Apr 2026 in “Claude Opus 4.7”

“changing something like this absolutely changes the behaviour of the models responses”

CriticizesComment from 16 Apr 2026 in “Claude Opus 4.7”

“extremely counter-productive if you care about the quality of its reasoning”

CriticizesComment from 16 Apr 2026 in “Claude Opus 4.7”

“I love this idea even if it's relatively insignificant in savings.”

RecommendsComment from 16 Apr 2026 in “Claude Opus 4.7”

“almost the entirety of the context spent is in file reads (for input) and reasoning (in output), you will barely save even 1%”

CriticizesComment from 16 Apr 2026 in “Claude Opus 4.7”

“I already enjoy reading its output more than vanilla so suits me well.”

RecommendsComment from 16 Apr 2026 in “Claude Opus 4.7”

“26.8 percent token reduction. zero observed degradation.”

RecommendsComment from 6 Apr 2026 in “Caveman in Practice”

“So my current position is: interesting idea, narrower claim than some people think, needs benchmarks”

MixedComment from 5 Apr 2026 in “Talk like caveman”

“it does not reduce the token usage really”

MixedComment from 5 Apr 2026 in “Talk like caveman”

“it will make my day not to have to read through entire essays about some trivial solution”

RecommendsComment from 5 Apr 2026 in “Talk like caveman”

Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.