Problem
The camelCaseToKebabCase function in agents/dist/utils.js treats every capital letter as a word boundary, which breaks common naming conventions that use acronyms (e.g., AI, API, UI, DB).
Expected Behavior
AISessionAgent should convert to ai-session-agent
Actual Behavior
AISessionAgent converts to a-i-session-agent (each letter A, I treated separately)
The Error Message
The url http://localhost/agents/a-i-session-agent/default does not match any server namespace.
Did you forget to add a durable object binding to the class A-i-session-agent in your wrangler.jsonc?
This error is confusing because:
- It doesn't explain that the agent name was transformed
- It suggests adding a binding for
A-i-session-agent (which isn't a valid class name)
- Users have no indication that their
AISessionAgent class name is causing the mismatch
Workaround
Pass the kebab-case name directly to useAgent():
// Instead of this (broken):
useAgent({ agent: 'AISessionAgent', name: sessionId })
// Do this (works):
useAgent({ agent: 'ai-session-agent', name: sessionId })This works because camelCaseToKebabCase('ai-session-agent') returns 'ai-session-agent' unchanged.
Suggested Fixes
Option 1: Improve the transformation function
Update camelCaseToKebabCase to handle consecutive capitals as acronyms:
function camelCaseToKebabCase(str) {
// Handle consecutive capitals as acronyms (e.g., "AI" stays together)
return str
.replace(/([A-Z]+)([A-Z][a-z])/g, '$1-$2') // Split before last capital of acronym
.replace(/([a-z])([A-Z])/g, '$1-$2') // Split lowercase to uppercase
.toLowerCase();
}
// AISessionAgent -> ai-session-agent
// APIEndpoint -> api-endpoint
// MyUIComponent -> my-ui-componentOption 2: Better error message
If the namespace isn't found, show what the input was transformed to:
Agent namespace 'a-i-session-agent' not found.
Note: 'AISessionAgent' was converted to 'a-i-session-agent'.
Tip: Pass the kebab-case name directly: useAgent({ agent: 'ai-session-agent' })
Option 3: Document the behavior
Add JSDoc to the agent option explaining:
- The transformation that occurs
- That kebab-case names pass through unchanged
- Examples with acronyms
Environment
agents package version: 0.0.74hono-agents package version: 0.0.9
Problem
The
camelCaseToKebabCasefunction inagents/dist/utils.jstreats every capital letter as a word boundary, which breaks common naming conventions that use acronyms (e.g.,AI,API,UI,DB).Expected Behavior
AISessionAgentshould convert toai-session-agentActual Behavior
AISessionAgentconverts toa-i-session-agent(each letterA,Itreated separately)The Error Message
This error is confusing because:
A-i-session-agent(which isn't a valid class name)AISessionAgentclass name is causing the mismatchWorkaround
Pass the kebab-case name directly to
useAgent():This works because
camelCaseToKebabCase('ai-session-agent')returns'ai-session-agent'unchanged.Suggested Fixes
Option 1: Improve the transformation function
Update
camelCaseToKebabCaseto handle consecutive capitals as acronyms:Option 2: Better error message
If the namespace isn't found, show what the input was transformed to:
Option 3: Document the behavior
Add JSDoc to the
agentoption explaining:Environment
agentspackage version: 0.0.74hono-agentspackage version: 0.0.9