Installing claude-mem uploads your last 30 days of prompts to cmem.ai, no opt-in
Comments on “Installing claude-mem uploads your last 30 days of prompts to cmem.ai, no opt-in”
Claim-checked. Scored by all three judges, and its checkable claims were compared with the sources it cites. How far stories are checked
A GitHub issue reports that the claude-mem installer (v15.2.0 onward, including v15.5.0) opens a browser setup page that scans local histories from Claude Code, Codex, Gemini CLI, Antigravity and OpenCode, then uploads 30 days of prompts to cmem.ai. The reporter says the screen never discloses this and its checkbox doesn't stop it. The scan and the privacy-policy mismatch check out; the upload details and DeepSeek/OpenRouter routing rest on the reporter's account. Developers handling sensitive prompts may want to block cmem.ai first.
Why it ranked
No. 12 of 127 with a score of 0.72. The panel rated it highest on substantiated (0.91) and reader interest (0.88), lowest on audience breadth (0.48). Placed No. 12, No. 11 by score alone: the sixth Security story of the day (−0.060). The placement terms move stories; they are not part of the score.
- AI judgeJudge 2claude-haiku-5-5
- Well-sourced account of a tool silently uploading user prompts to an unknown provider, with code references and vendor confirmation; high practical and security relevance for developers using AI coding tools.
- AI judgeJudge 3gpt-5.6-luna
- A well-supported, reproducible privacy and security investigation documents silent prompt exfiltration by a widely relevant AI tooling installer, with concrete code locations, affected tools, provider risk, and actionable mitigation.
Each judge wrote its line after answering the rubric, with the site and the author still hidden. Every answer behind this is in the table under Score.
Score
0.72total under rubric v2.3
- Significance0.61
- Reader interest0.88
- Audience breadth0.48
- Practical relevance0.82
- Substantiated0.91
- Technical depth0.82
- New information0.87
- Counts against: Promotional0.03
- Counts against: Overclaim0.18
Each judge’s answer per question (0–1), their mean and spread, and what the question adds to the score (weight × mean).
| Question | Judge 1 | Judge 2 | Judge 3 | Mean | Spread | Weight | Contribution (weight times mean) |
|---|---|---|---|---|---|---|---|
| SignificanceHow much does this change what people in tech know or can do? | 0.57 | 0.55 | 0.72 | 0.61 | 0.17 | +0.24 | +0.147 |
| Reader interestWould a well-informed senior engineer or tech founder want to read this today, and likely pass it on? | 0.85 | 0.85 | 0.94 | 0.88 | 0.09 | +0.26 | +0.229 |
| Audience breadthHow many people who build technology does it concern? | 0.31 | 0.60 | 0.52 | 0.48 | 0.29 | +0.13 | +0.062 |
| Practical relevanceHow useful is it to someone who builds software or tech products? | 0.78 | 0.80 | 0.88 | 0.82 | 0.10 | +0.22 | +0.180 |
| SubstantiatedHow well is it backed? Consider whether it is the primary source, and whether its main claims come with data, code, a demo, a reproducible method or citations. | 0.91 | 0.85 | 0.96 | 0.91 | 0.11 | +0.05 | +0.045 |
| Technical depthHow technically substantive is it? | 0.94 | 0.70 | 0.82 | 0.82 | 0.23 | +0.05 | +0.041 |
| New informationDoes it contain information absent from the stories covered in the last 7 days (list provided)? | 0.86 | 0.80 | 0.94 | 0.87 | 0.14 | +0.05 | +0.043 |
| PromotionalIs it mainly marketing with little substance (a press release, ad or sponsored post with no real information)? A launch post that carries real news is not promotional. | 0.05 | 0.03 | 0.01 | 0.03 | 0.04 | −0.19 | −0.006 |
| OverclaimDo the headline or conclusions claim more than the body supports? | 0.26 | 0.20 | 0.08 | 0.18 | 0.18 | −0.11 | −0.020 |
| Sum of contributions | +0.723 | ||||||
| Claim-check penalty | 0.000 | ||||||
| Total, as published | 0.723 | ||||||
Spread is the highest minus the lowest judge answer. marks a spread above 0.40: the judges disagree, and the story is marked contested.
The badge for this ranking, for the author's page or anyone's: one line of HTML, and it links back here.
<a href="https://rubric.hrih.si/editions/2026-10-30/12/"><img src="https://rubric.hrih.si/badge/2026-10-30/12.svg" alt="Ranked #12 on Rubric, 30 Oct 2026" width="245" height="28"></a>Claim check
Claim check: 2 matches source · 2 no source given · 4 couldn’t check. Each claim is compared with the source the article itself cites; a flag is published only when both checkers agree.
Matches sourceNumber
The claude-mem setup's first screen reads local chat histories and collects prompts typed in the last 30 days, regardless of which tools were selected in the installer.
The cited source says the same thing.
The article says “collects the prompts you typed in the last 30 days, regardless of which tools you selected in the installer”
The source says “Claude Code keeps about 30 days of transcripts, so that is what the data holds; every agent uses the same window”
Source cited by the article: github.com/thedotmack/claude-mem/blob/d7c2da3e5f9397b394dbc6b6966f4b261b489f7b/src/services/prompt-import/index.ts
Couldn’t checkCausal conclusion
The claude-mem setup screen uploads the full text of the prompts to cmem.ai, with session IDs, project names, folder paths and timestamps.
The source was unreachable, paywalled or too long, or the two checkers disagreed.
The article says “That first screen then uploads the full text of those prompts to cmem.ai, with session IDs, project names, folder paths and timestamps”
The source says No passage could be compared.
Source cited by the article: github.com/thedotmack/claude-mem/blob/d7c2da3e5f9397b394dbc6b6966f4b261b489f7b/src/services/work-view/hosted-intent.ts
Couldn’t checkCausal conclusion
The upload begins as soon as the setup page loads.
The source was unreachable, paywalled or too long, or the two checkers disagreed.
The article says “The upload starts as soon as the setup page loads, and setup offers no way to stop it”
The source says No passage could be compared.
Source cited by the article: github.com/thedotmack/claude-mem/blob/d7c2da3e5f9397b394dbc6b6966f4b261b489f7b/src/ui/my-work/src/setup/setup-data.ts
Couldn’t checkQuote
The setup checkbox for sharing anonymized setup results is ticked by default and disabled during the upload, and cmem.ai confirmed that unticking it does not stop the upload.
The source was unreachable, paywalled or too long, or the two checkers disagreed.
The article says “It is ticked by default and disabled during the upload, and cmem.ai confirmed that unticking it does not stop the upload”
The source says No passage could be compared.
Source cited by the article: github.com/thedotmack/claude-mem/blob/d7c2da3e5f9397b394dbc6b6966f4b261b489f7b/src/services/prompt-import/setup-scan.ts
Couldn’t checkVersion
The upload is described in the v15.2.0 changelog.
The source was unreachable, paywalled or too long, or the two checkers disagreed.
The article says “The upload is described in the v15.2.0 changelog, but setup itself never asks”
The source says No passage could be compared.
Source cited by the article: github.com/thedotmack/claude-mem/blob/d7c2da3e5f9397b394dbc6b6966f4b261b489f7b/CHANGELOG.md
No source givenDate
claude-mem v15.5.0 was released on Oct 29, after cmem.ai confirmed the behaviour by email, with the setup upload unchanged.
The article gives no link or citation for it.
The article says “v15.5.0 (Oct 29) was released after cmem.ai had confirmed this behaviour by email, with the setup upload unchanged”
The source says No source to compare with.
No source givenCausal conclusion
cmem.ai sent the prompts to a DeepSeek model through OpenRouter, routed to the cheapest provider, without blocking providers that keep or train on prompts.
The article gives no link or citation for it.
The article says “cmem.ai sent the prompts to a DeepSeek model through OpenRouter, routed to the cheapest provider”
The source says No source to compare with.
Matches sourceQuote
The cmem.ai privacy policy says nothing leaves the device unless cloud sync is explicitly turned on, yet the prompts were uploaded without cloud sync enabled.
The cited source says the same thing.
The article says “Nothing leaves your device unless you explicitly turn on cloud sync." I never turned on cloud sync, and the prompts were uploaded anyway”
The source says “Nothing leaves your device unless you explicitly turn on cloud sync”
Source cited by the article: cmem.ai/privacy
Also covered by
No other coverage was clustered with this story.
Elsewhere
Elsewhere: HN 1 pts, not on front page
Recorded for context only, checked 30 Oct 2026, 05:47 UTC. It played no part in the ranking.