Mastra•3mo ago

Why the memory property in Agent is unable to get the context from runtime?

I logged the runtime context from both Memory and Instructions. It’s being received correctly by Instructions, but not by Memory.
Please see my attachments

ChaosumaruOP•10/18/25, 1:49 AM

both Memory and Instructions should have same context received from runtime right?

Mastra Triager•10/18/25, 12:05 PM

Created GitHub issue: https://github.com/mastra-ai/mastra/issues/8999

GitHub

[DISCORD:1428922216132907038] Why the memory property in Agent is u...

This issue was created from Discord post: https://discord.com/channels/1309558646228779139/1428922216132907038 I logged the runtime context from both Memory and Instructions. It’s being received co...

Ward•10/20/25, 1:46 PM

@Chaosumaru how do you use runtimeContext in your code, can you show us a small reproduction?

ChaosumaruOP•10/20/25, 9:06 PM

@Ward here, it is just a basic get from the runtimecontext

Ward•10/20/25, 9:07 PM

That's odd, we'll have a look

ChaosumaruOP•10/20/25, 9:09 PM

Yeah I thought it was working, Cause I assume it should work since, I tried instructions, model, workflows, and tools are working fine for me... I am not sure yet with other properties

dero•10/22/25, 9:54 AM

Hey @Chaosumaru my simple repro with your current versioning works, how are you setting the runtimeContext

ChaosumaruOP•10/22/25, 7:21 PM

@dero Thank you for the response.

its in the attachments above.. .Runtime context from the Mastra Playground... same implementation in Instructions also, the thing I only receive context from instructions only... but in Memory, its unable to receive it... Check it the attachements above, I also logged them both memory and instructions.

I will try to repro this in different client perhaps via postman

They should have same log from the runtime context right?

I will try to repro this again when I get back

ChaosumaruOP•10/22/25, 9:21 PM

@Ward @dero I found now the issue, so in Playground predefining the runtime context is not working, but in the Server it works perfectly fine.
Here's my findings:

In Playground runtime context - memory does not receive something - it does not work
- test it via Mastra Dev Playground ( I am using mastra playground if I do experiments on each mastra feature before applying it in our applications )
In Mastra Server with Middleware- setting context to runtime with Headers - This work
- test it via postman
In AG UI - implementing via Copilotkit runtime - This work
- test it with NextJS + Copilotkit integration

Thank you for the response

dero•10/27/25, 4:22 PM

Gracias @Chaosumaru we've now caught the issues, and a PR to fix is now open https://github.com/mastra-ai/mastra/pull/9328

Why the memory property in Agent is unable to get the context from runtime?

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