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[BUG] Agents with "compaction" | Tools name error #1550
Description
📋 Prerequisites
- I have searched the existing issues to avoid creating a duplicate
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- I am using the latest version of the software
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- I can consistently reproduce this issue
🎯 Affected Service(s)
Not Sure
🚦 Impact/Severity
Minor inconvenience
🐛 Bug Description
As our user are likely to have longer session with Kagent, I wanted to enable the compaction feature. For testing purposes used the following configs:
context:
compaction:
compactionInterval: 5
overlapSize: 2
summarizer:
modelConfig: bedrock-model-configThis is the orchestrator agent in multi-agent architecture.
Howerver, after the "compaction" of the context is triggered, the Agent seems to forget the sub-agent available, to use as tools and throws an error:
Tool 'agent_name_aa' not found.\nAvailable tools: datetime_get_current_time, kagent__NS__agent_name_aa, kagent__NS__agent_name_bb ....
🔄 Steps To Reproduce
- create an Agent
- enable the compaction config
- trigger the compaction, e.g. based on the configs above, asking >5 promts
- when propt a task that requires delegating to other agents, error is thrown
🤔 Expected Behavior
The compaction is effectively reducing the context size, by summarizing it.
The Agent acting as orchestrator, should continue its work normally, even after the compaction.
It should not "forget" the available sub-agent, used for delegeting tasks.
📱 Actual Behavior
An error is thrown, and the task is not delegated to appropriate sub-agent.
Seems like the names of the sub-agent are different from what's expected.
💻 Environment
- AWS EKS - eks.29
- Kubernetes - 1.33
- Kagent: 0.7.23
- Model: Bedrock - Anthropic Claude Sonnet 4.5
🔧 CLI Bug Report
No response
🔍 Additional Context
No response
📋 Logs
📷 Screenshots
No response
🙋 Are you willing to contribute?
- I am willing to submit a PR to fix this issue
Activity
yashrajshuklaaa commentedon Apr 1, 2026
/assign
i'd like work on this issue
yashrajshuklaaa commentedon Apr 1, 2026
hey
want to look into this one
the error is pretty telling tbh:
so the tool IS there, just the orchestrator is calling it by the short name while post-compaction everything is registered under the namespaced version (kagent__NS__...). my guess is the summarizer writes something like "use agent_name_aa for X tasks" into the compacted context and when the agent reads that back it tries to invoke it exactly as written - dropping the namespace prefix.
want to:
if someone can point me to where compaction rebuilds the context / where tool calls get dispatched i can move faster, otherwise ill just start digging from the compaction interval trigger
willing to PR once i nail down the root cause
sairamreddy66 commentedon May 21, 2026
Hi, Is this fixed. If not can I work on this?
yashrajshuklaaa commentedon May 22, 2026
hi @sairamreddy66 i am working on this and it's almost ready
fix(compaction): preserve namespaced tool names in LLM summarizer pro…