Murmur by InstaVM
Ranked 3 of 4 agent communication protocols by recommenders
Open-source tool that lets coding agents like Claude and Codex talk to each other and run scheduled tasks; critics say it wastes tokens and is insecure.
7 people recommended Murmur by InstaVM in Hacker News comments, 4 had mixed feelings and none criticized it, November 2025 to October 2026.
Summary written by Claude from 15 comments. It was written before the November 2026 recount, and 11 of those comments still count.
11 people gave an opinion
- recommend it
- 7
- mixed feelings
- 4
- warn against or regret it
- 0
The record
Recommended in 4 of 12 months
In 7 different threads.
- November 2025: not recommended
- December 2025: not recommended
- January 2026: recommended
- February 2026: recommended
- March 2026: not recommended
- April 2026: not recommended
- May 2026: not recommended
- June 2026: recommended
- July 2026: recommended
- August 2026: not recommended
- September 2026: not recommended
- October 2026: not recommended
Why it doesn’t carry the badge
- 7 people recommend itNeeds 10 or more, not met.
- Nobody criticizes itNeeds 2 to 1 or better, met.
- Recommended in 4 of 12 monthsNeeds 4 or more, met.
- Recommended in 7 threadsNeeds 5 or more, met.
- The biggest thread supplies 14% of its recommendersNeeds half or less, met.
The same rules apply to every product, and the badge can’t be bought. Mixed feelings count toward neither side. How the badge works
What people say about it
Reasons grouped from a sample of 11 of the 11 opinions about it, picked in proportion to how many people recommend it, have mixed feelings and criticize it. Each mark is one comment in the sample. Open a reason to read what they said.
Why people recommend it
Each mark is one comment
Seen as a robust, good solution
“This seems like a much more robust solution compared to one posted here.”
Comment from 17 Jul 2026 in “Agent-talk: Enabling coding agents to work together” “I do think something like this is a good solution!”
Comment from 26 Jun 2026 in “Murmur: Shared communication bus for your coding agents” Runs recurring tasks for coding agents
“its a cron job for claude/pi without all the baggage which openClaw brings”
Comment from 8 Feb 2026 in “Show HN: ClawGig – A freelance marketplace where AI agents can earn USDC” Used for months in real projects
“It's been running in my own projects for several months now and I think it's at a point worth sharing.”
Comment from 17 Jun 2026 in “Murmer – An experiment in bringing Elixir's actor model to Rust”
What people warn about
Each mark is one comment
Wastes tokens and computation
“Very wasteful in tokens and ultimately computation.”
Comment from 27 Jun 2026 in “Murmur: Shared communication bus for your coding agents” Insecure
“it is truly magical (while crazy insecure”
Comment from 26 Jan 2026 in “Clawdbot - open source personal AI assistant” Agents can already coordinate directly
“nice idea, but nowadays we can ask codex oe claude to use each other to perform tasks”
Comment from 28 Jun 2026 in “Murmur: Shared communication bus for your coding agents” Calendar sharing is simpler
“isn't this just a very hard way to get access to their calendar…”
Comment from 26 Jan 2026 in “Clawdbot - open source personal AI assistant”
Other agent communication protocols people recommend
The three most recommended other agent communication protocols, 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 | Mixed | Criticize | Approval | Months | Had for | Badge |
|---|---|---|---|---|---|---|---|
| MCP Apps | 9 | 0 | 3 | 75% | 5 | — | — |
| A2A (Agent2Agent) protocol | 9 | 4 | 18 | 33% | 3 | — | — |
| Murmur by InstaVMThis page | 7 | 4 | 0 | 100% | 4 | — | — |
| Bindu | 5 | 0 | 0 | 100% | 1 | — | — |
What people said
All 11 opinions about it, newest first. Each links to the original comment.
“This seems like a much more robust solution compared to one posted here.”
“nice idea, but nowadays we can ask codex oe claude to use each other to perform tasks”
“Very wasteful in tokens and ultimately computation.”
“I do think something like this is a good solution!”
“kind of works with your existing subscription (having API key is not mandatory”
“It's been running in my own projects for several months now and I think it's at a point worth sharing.”
“Murmur / Mumble are free to self host and use.”
“its a cron job for claude/pi without all the baggage which openClaw brings”
“We can help resurrect Murmur via https://github.com/De-Novo-Group/rangzen-revival”
“isn't this just a very hard way to get access to their calendar…”
“it is truly magical (while crazy insecure”
Counts come from 1,791,911 Hacker News comments labeled by Claude, November 2025 to October 2026, with data through October 31, 2026. Counts updated 2 Nov 2026. How we count. Report a mistake.