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%
Recommended in 7 of 13 months
- November 2025: not recommended
- December 2025: not recommended
- January 2026: not recommended
- February 2026: not recommended
- March 2026: not recommended
- April 2026: recommended
- May 2026: recommended
- June 2026: recommended
- July 2026: recommended
- August 2026: recommended
- September 2026: recommended
- October 2026: recommended
- 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” - Comment from 23 Apr 2026 in “Claude Code removed from Anthropic's Pro plan”
- Comment from 14 Jul 2026 in “How to stop Claude from saying load-bearing”
- Comment from 12 Sep 2026 in “RTK reports token savings, but our cost benchmarks disagree”
- Comment from 13 Aug 2026 in “Zed: Delta”
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” - Comment from 23 Apr 2026 in “Claude Code removed from Anthropic's Pro plan”
- Comment from 12 Sep 2026 in “RTK reports token savings, but our cost benchmarks disagree”
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” - Comment from 6 Apr 2026 in “Caveman in Practice”
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” - Comment from 20 Aug 2026 in “Clean up Claude 5's token vomit with a separate LLM”
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” - Comment from 16 Apr 2026 in “Claude Opus 4.7”
- Comment from 30 Apr 2026 in “I benchmarked Claude Code's caveman plugin against "be brief."”
- Comment from 18 Jun 2026 in “The Token Compression Illusion: Why I'm Skeptical of RTK”
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” - 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.
| Product | Recommend | Criticize | Approval | Months | Owned | Badge |
|---|---|---|---|---|---|---|
| CavemanThis page | 59 | 33 | 64% | 7 | — | — |
| Warcraft III Peon Voice Notifications for Claude Code | 31 | 6 | 84% | 1 | — | — |
| oh-my-openagent | 10 | 6 | 63% | 8 | — | — |
| Codex plugin | 10 | 3 | 77% | 7 | — | Approved |
| Compound Engineering plugin by Every | 9 | 0 | 100% | 8 | — | — |
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”
“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.”
“in the time I've actually come to like its matter-of-fact and short way of responding”
“anecdotally I do think it saves me quite a lot of time on reading LLM outputs”
“caveman is looking to be the only tool that actually doesn't regress on reasoning while taking costs down”
“it takes things too far in that direction, with "cave man" speech that sucks”
“I've found it effective so far. Chat output isn't nearly as flowery.”
“it has made my Claude experience vastly better”
“I want to spent less time reading.”
“In real sessions it doesn’t really save much longterm and made sessions more forgetful/take longer.”
“You should definitely explore caveman repo and other token-saving repositories.”
“Now I can’t stand caveman anymore. It is really frustrating working with it.”
“It also saves you tokens and it has been linked with more accuracy.”
“it cuts down on time spent digesting slop in general”
“answer like a cavemen, if llm talk like cavemen, the answers become shorter and more compressed”
“tools like RTK, Headroom, caveman mode and others do reduce input and output tokens that need to be processed”
“pointing to resource showing caveman, rtk saving just couple bucks on $926 bill”
“I want to see more operators try https://github.com/juliusbrussee/caveman”
“I tested both for weeks and they didn't really saved that much money for Opus model.”
“You can just add "be brief" to the prompt to replace the entire plugin. Same results.”
“Caveman only affects output tokens — thinking/reasoning tokens are untouched.”
“It really releases the stress slightly to call bugs, buggas and generally role play a humorous setting”
“It's a funny joke, but saving a couple hundred tokens in the final output is going to be negligible”
“the benchmark suggests it doesn't offer as much benefit as”
“turns out I never read the words that caveman omits, so to me it makes zero difference”
“What I appreciate is the terse answers it gives to me.”
“for THAT value of "better" it's not much different”
“Actually tried caveman mode yesterday and it made everything SO MUCH BETTER”
“If you're enjoying this thread, you have to make a stop over here”
“caveman sounds bad and is not as easy to understand compared to normal English”
“there are not many workarounds to minimize token usage unless you use caveman”
“changing something like this absolutely changes the behaviour of the models responses”
“extremely counter-productive if you care about the quality of its reasoning”
“I love this idea even if it's relatively insignificant in savings.”
“almost the entirety of the context spent is in file reads (for input) and reasoning (in output), you will barely save even 1%”
“I already enjoy reading its output more than vanilla so suits me well.”
“26.8 percent token reduction. zero observed degradation.”
“So my current position is: interesting idea, narrower claim than some people think, needs benchmarks”
“it does not reduce the token usage really”
“it will make my day not to have to read through entire essays about some trivial solution”
Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.