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V0.8.0 push status to frontend #48

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ton merged 2 commits from v0.8.0-push_status_to_frontend into v0.8.0 2026-09-11 01:29:37 +00:00
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1 changed files with 73 additions and 78 deletions
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src/agentCore.jl
+73 -78
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@@ -264,18 +264,18 @@ function _agentLoop(agent::yiemAgent)
while true
while newUserMsg === nothing
if isready(agent.inputChannel)
agent.eventSink("_agentLoop 1 agent._state.messages length $(length(agent._state.messages))"; publish=false, log=true)
agent.eventSink("_agentLoop 1 agent._state.messages length $(length(agent._state.messages))"; publish=true)
# agent process new user msg immediately after the current tool call finished.
newUserMsg = take!(agent.inputChannel)
# agent.eventSink("new user msg\n$newUserMsg"; publish=false, log=true)
# agent.eventSink("new user msg\n$newUserMsg"; publish=true)
else
# check followUp message after _processMessage() is done
if typeof(processingTask) == Task && istaskdone(processingTask) == true
agent.eventSink("_agentLoop 2 agent._state.messages length $(length(agent._state.messages))"; publish=false, log=true)
agent.eventSink("_agentLoop 2 agent._state.messages length $(length(agent._state.messages))"; publish=true)
# if agent runs is done but followUpChannel has messages,
# put new message in inputChannel instead
if isready(agent.followUpChannel)
agent.eventSink("_agentLoop 3 agent._state.messages length $(length(agent._state.messages))"; publish=false, log=true)
agent.eventSink("_agentLoop 3 agent._state.messages length $(length(agent._state.messages))"; publish=true)
while isready(agent.followUpChannel)
followUpMsg = take!(agent.followUpChannel)
put!(agent.inputChannel, followUpMsg)
@@ -283,18 +283,18 @@ function _agentLoop(agent::yiemAgent)
processingTask = nothing # reset
result = nothing # reset
else # _processMessage() done and no followUp message.
agent.eventSink("_agentLoop 4 agent._state.messages length $(length(agent._state.messages))"; publish=false, log=true)
agent.eventSink("_agentLoop 4 agent._state.messages length $(length(agent._state.messages))"; publish=true)
result = deepcopy(agent._state.messages[end])
agent.eventSink("_agentLoop 4-1 "; publish=false, log=true)
agent.eventSink("_agentLoop 4-1 "; publish=true)
# filter out reasoningContent in-place
filter!(c -> !(c isa reasoningContent), result.content)
agent.eventSink("_agentLoop 5 "; publish=false, log=true)
agent.eventSink("_agentLoop 5 "; publish=true)
# format output
respondToUI = _assistantMessageToOpenAI(result)
agent.eventSink("_agentLoop 6 "; publish=false, log=true)
agent.eventSink("_agentLoop 6 "; publish=true)
put!(agent.outputChannel, respondToUI)
if !isempty(result.content) && result.content[1] isa textContent
agent.eventSink(result.content[1].text; publish=false, log=true)
agent.eventSink(result.content[1].text; publish=true)
end
processingTask = nothing # reset
result = nothing # reset
@@ -325,7 +325,7 @@ function _agentLoop(agent::yiemAgent)
else
# spawn new _processMessage() if it is not already running.
if processingTask === nothing
agent.eventSink("_agentLoop 5 agent._state.messages length $(length(agent._state.messages))"; publish=false, log=true)
agent.eventSink("_agentLoop 5 agent._state.messages length $(length(agent._state.messages))"; publish=true)
# discard all messages in followUpChannel
while isready(agent.followUpChannel)
_ = take!(agent.followUpChannel)
@@ -356,7 +356,7 @@ function _agentLoop(agent::yiemAgent)
showerror(io, e, bt)
println(io)
end
eventSink(errMsg; publish=false, log=true)
eventSink(errMsg; publish=true)
# On any error, send error response and exit the loop
@error "Agent loop failed" error=e
@@ -404,7 +404,7 @@ function _processMessage(
afterToolCall::Union{Function, Nothing},
parallelToolExecute::Bool,
)::Nothing
eventSink("_processMessage 1 _state.messages length $(length(agentMsgHistory))"; publish=false, log=true)
eventSink("_processMessage 1 _state.messages length $(length(agentMsgHistory))"; publish=true)
# loop until llmCall() response didn't use tool calls
final_response = nothing
@@ -425,43 +425,43 @@ function _processMessage(
try
# Drain inputChannel and convert OpenAI-format messages to userMessage type
while isready(inputChannel)
eventSink("_processMessage 2 _state.messages length $(length(agentMsgHistory))"; publish=false, log=true)
eventSink("_processMessage 2 _state.messages length $(length(agentMsgHistory))"; publish=true)
newUserMsg_openai = take!(inputChannel)
eventSink("_processMessage 3 _state.messages length $(length(agentMsgHistory))"; publish=false, log=true)
eventSink("_processMessage 3 _state.messages length $(length(agentMsgHistory))"; publish=true)
if newUserMsg_openai === :shutdown
eventSink("_processMessage 4 _state.messages length $(length(agentMsgHistory))"; publish=false, log=true)
eventSink("_processMessage 4 _state.messages length $(length(agentMsgHistory))"; publish=true)
# Re-emit shutdown signal for the loop to handle
put!(inputChannel, :shutdown)
break
end
eventSink("_processMessage 5 _state.messages length $(length(agentMsgHistory))"; publish=false, log=true)
eventSink("_processMessage 5 _state.messages length $(length(agentMsgHistory))"; publish=true)
newUserMsg = OpenAiToUserMessage(newUserMsg_openai)
push!(agentMsgHistory, newUserMsg)
eventSink("_processMessage 6 _state.messages length $(length(agentMsgHistory))"; publish=false, log=true)
eventSink("_processMessage 6 _state.messages length $(length(agentMsgHistory))"; publish=true)
end
eventSink("_processMessage 7 _state.messages length $(length(agentMsgHistory))"; publish=false, log=true)
eventSink("_processMessage 7 _state.messages length $(length(agentMsgHistory))"; publish=true)
# call prepareContext()
state = agentState(systemPrompt, nothing, tools, agentMsgHistory)
eventSink("_processMessage 8 _state.messages length $(length(agentMsgHistory))"; publish=false, log=true)
eventSink("_processMessage 8 _state.messages length $(length(agentMsgHistory))"; publish=true)
preparedContext = prepareContext(state, eventSink)
eventSink("_processMessage 9 _state.messages length $(length(agentMsgHistory))"; publish=false, log=true)
eventSink("_processMessage 9 _state.messages length $(length(agentMsgHistory))"; publish=true)
# Call formatMessagesForLLM() to format for LLM
formattedMessages = formatMessagesForLLM(preparedContext, eventSink)
# eventSink("_processMessage 10 formattedMessages $formattedMessages"; publish=false, log=true)
# eventSink("_processMessage 10 formattedMessages $formattedMessages"; publish=true)
""" response example
response = JSON.Object{String, Any}("finish_reason" => "tool_calls", "index" => 0, "message" => JSON.Object{String, Any}("role" => "assistant", "content" => "", "reasoning_content" => "Here's a thinking process:\n\n1. **Identify User Request**: The user is asking for the weather in Bangkok.\n2. **Locate Relevant Tool**: I have a `getWeather` function available.\n3. **Check Function Parameters**:\n - `city` (required): City and country, e.g., 'San Francisco, CA' or 'Tokyo, Japan'\n - `units` (optional, default \"celsius\"): Temperature scale (\"celsius\" or \"fahrenheit\")\n4. **Prepare Parameters**:\n - `city`: \"Bangkok, Thailand\" (adding country for clarity, though just \"Bangkok\" might work, following the example format is safer)\n - `units`: Not specified, so I'll use the default (\"celsius\")\n5. **Execute Tool Call**: Call `getWeather` with `city: \"Bangkok, Thailand\"`\n6. **Anticipate Response**: The function will return current weather and forecast data for Bangkok. I'll then format it nicely for the user.\n - *Self-Correction/Verification during thought*: The prompt says \"city: City and country, e.g., 'San Francisco, CA' or 'Tokyo, Japan'\". I'll use \"Bangkok, Thailand\". The `units` parameter is optional, so I'll omit it to use the default.\n - Proceed with tool call.✅\n", "tool_calls" => Any[JSON.Object{String, Any}("type" => "function", "function" => JSON.Object{String, Any}("name" => "getWeather", "arguments" => "{\"city\":\"Bangkok, Thailand\"}"), "id" => "6fOilR5QPcdppbAAHluhkRyUDu3oWMAL")]))
"""
response = llmCall(formattedMessages, eventSink=eventSink)
# eventSink("LLM response " * string(response); publish=false, log=true)
# eventSink("LLM response " * string(response); publish=true)
eventSink("_processMessage 11 _state.messages length $(length(agentMsgHistory))"; publish=false, log=true)
eventSink("_processMessage 11 _state.messages length $(length(agentMsgHistory))"; publish=true)
# Extract tool calls from LLM response content blocks
hasToolCalls, toolCallList, assistant_msg = _extractToolCalls(response)
eventSink("hasToolCalls: $hasToolCalls\ntoolCallList: $toolCallList _state.messages length $(length(agentMsgHistory))"; publish=false, log=true)
eventSink("assistant_msg " * string(assistant_msg); publish=false, log=true)
eventSink("_processMessage 11-1"; publish=false, log=true)
eventSink("hasToolCalls: $hasToolCalls\ntoolCallList: $toolCallList _state.messages length $(length(agentMsgHistory))"; publish=true)
eventSink("assistant_msg " * string(assistant_msg); publish=true)
eventSink("_processMessage 11-1"; publish=true)
# Add assistant message (tool calls or text) to history for next LLM turn
push!(agentMsgHistory, assistant_msg)
@@ -476,21 +476,21 @@ function _processMessage(
)
signal = abortSignal(false)
eventSink("_processMessage 12 _state.messages length $(length(agentMsgHistory))"; publish=false, log=true)
eventSink("_processMessage 12 _state.messages length $(length(agentMsgHistory))"; publish=true)
# call executeToolCalls()
toolResultBatch = executeToolCalls(preparedContext, assistant_msg, toolCallList, config,
signal, eventSink)
eventSink("_processMessage 13 _state.messages length $(length(agentMsgHistory))"; publish=false, log=true)
eventSink("_processMessage 13 _state.messages length $(length(agentMsgHistory))"; publish=true)
# save toolResults to messages
for toolResult in toolResultBatch.messages
# eventSink("toolResult " * string(toolResult); publish=false, log=true)
# eventSink("toolResult " * string(toolResult); publish=true)
push!(agentMsgHistory, toolResult)
end
eventSink("_processMessage 14 _state.messages length $(length(agentMsgHistory))"; publish=false, log=true)
eventSink("_processMessage 14 _state.messages length $(length(agentMsgHistory))"; publish=true)
if toolResultBatch.terminate
eventSink("_processMessage 15 _state.messages length $(length(agentMsgHistory))"; publish=false, log=true)
eventSink("_processMessage 15 _state.messages length $(length(agentMsgHistory))"; publish=true)
# If toolResultBatch requested termination, build a final response
final_content = [textContent("Tool execution completed.")]
for toolResult in toolResultBatch.messages
@@ -504,7 +504,7 @@ function _processMessage(
end
end
end
eventSink("_processMessage 16 _state.messages length $(length(agentMsgHistory))"; publish=false, log=true)
eventSink("_processMessage 16 _state.messages length $(length(agentMsgHistory))"; publish=true)
final_response = assistantMessage(
role="assistant",
content=final_content,
@@ -523,7 +523,7 @@ function _processMessage(
break
end
else
eventSink("_processMessage 17 _state.messages length $(length(agentMsgHistory))"; publish=false, log=true)
eventSink("_processMessage 17 _state.messages length $(length(agentMsgHistory))"; publish=true)
# LLM did not use tool calls —
break
end
@@ -534,12 +534,12 @@ function _processMessage(
println(io)
end
eventSink(err_msg; publish=false, log=true)
eventSink(err_msg; publish=true)
end
end
eventSink("_processMessage 18 _state.messages length $(length(agentMsgHistory))"; publish=false, log=true)
eventSink("_processMessage 18 _state.messages length $(length(agentMsgHistory))"; publish=true)
return nothing
end
@@ -979,47 +979,47 @@ function prepareToolCall(
signal::abortSignal,
eventSink
)::Union{preparedToolCall,immediateOutcome}
eventSink("prepareToolCall 1"; publish=false, log=true)
eventSink("prepareToolCall 1"; publish=true)
# pick a called tool from tool store
tool = get(context.tools, toolCall.name, nothing)
if tool === nothing
eventSink("prepareToolCall 2"; publish=false, log=true)
eventSink("prepareToolCall 2"; publish=true)
return immediateOutcome(createErrorToolResult("Tool $toolCall.name not found"), true)
end
try
eventSink("prepareToolCall 3"; publish=false, log=true)
eventSink("prepareToolCall 3"; publish=true)
# 1. prepare arguments (tool-specific transform)
prepared = prepareToolCallArguments(tool, toolCall)
eventSink("prepared " * string(prepared.arguments); publish=false, log=true)
eventSink("prepareToolCall 4"; publish=false, log=true)
eventSink("prepared " * string(prepared.arguments); publish=true)
eventSink("prepareToolCall 4"; publish=true)
validatedArgs = validateToolArguments(tool, prepared)
eventSink("validatedArgs " * string(validatedArgs); publish=false, log=true)
eventSink("prepareToolCall 5"; publish=false, log=true)
eventSink("validatedArgs " * string(validatedArgs); publish=true)
eventSink("prepareToolCall 5"; publish=true)
# 2. beforeToolCall hook — can block
if config.beforeToolCall !== nothing
eventSink("prepareToolCall 6"; publish=false, log=true)
eventSink("prepareToolCall 6"; publish=true)
before = config.beforeToolCall(
beforeToolCallContext(assistantMsg, toolCall, validatedArgs, context),
signal,
eventSink
)
eventSink("prepareToolCall 7"; publish=false, log=true)
eventSink("prepareToolCall 7"; publish=true)
if signal.aborted
eventSink("prepareToolCall 8"; publish=false, log=true)
eventSink("prepareToolCall 8"; publish=true)
return immediateOutcome(createErrorToolResult("Operation aborted"), true)
end
if before !== nothing && before.block
eventSink("prepareToolCall 9"; publish=false, log=true)
eventSink("prepareToolCall 9"; publish=true)
return immediateOutcome(
createErrorToolResult(get(before, :reason, "Tool execution was blocked")), true)
end
end
eventSink("prepareToolCall 10"; publish=false, log=true)
eventSink("prepareToolCall 10"; publish=true)
return preparedToolCall(tool, toolCall, validatedArgs)
catch e
bt = catch_backtrace()
@@ -1028,7 +1028,7 @@ function prepareToolCall(
println(io)
end
eventSink(errMsg; publish=false, log=true)
eventSink(errMsg; publish=true)
return immediateOutcome(createErrorToolResult(sprint(showerror, e)), true)
end
@@ -1080,16 +1080,11 @@ function executePreparedToolCall(
signal::Union{Nothing,abortSignal},
eventSink,
)::executedOutcome
eventSink("executePreparedToolCall 1"; publish=false, log=true)
eventSink("executePreparedToolCall 1"; publish=true)
try
result = prep.tool.execute(prep.toolCall.id, prep.args, signal, eventSink)
eventSink("executePreparedToolCall 2"; publish=false, log=true)
eventSink("tool execute raw result: " * sprint(show, result); publish=false, log=true)
eventSink("executePreparedToolCall 3"; publish=false, log=true)
# eventSink("tool execute raw result: " * sprint(show, result); publish=true)
return executedOutcome(result, false)
catch e
bt = catch_backtrace()
@@ -1097,7 +1092,7 @@ function executePreparedToolCall(
showerror(io, e, bt)
println(io)
end
eventSink(errMsg; publish=false, log=true)
eventSink(errMsg; publish=true)
return executedOutcome(createErrorToolResult(sprint(showerror, e)), true)
end
@@ -1170,10 +1165,10 @@ function finalizeExecutedToolCall(
signal::Union{Nothing,abortSignal},
eventSink
)::finalizedOutcome
eventSink("finalizeExecutedToolCall 1"; publish=false, log=true)
eventSink("finalizeExecutedToolCall 1"; publish=true)
result = executed.result
isError = executed.isError
eventSink("finalizeExecutedToolCall result before afterToolCall\n$result"; publish=false, log=true)
# eventSink("finalizeExecutedToolCall result before afterToolCall\n$result"; publish=true)
if config.afterToolCall !== nothing
try
after = config.afterToolCall(
@@ -1181,7 +1176,7 @@ function finalizeExecutedToolCall(
signal,
eventSink
)
eventSink("finalizeExecutedToolCall 3"; publish=false, log=true)
eventSink("finalizeExecutedToolCall 3"; publish=true)
if after !== nothing
result = after
isError = false
@@ -1192,13 +1187,13 @@ function finalizeExecutedToolCall(
showerror(io, e, bt)
println(io)
end
eventSink(errMsg; publish=false, log=true)
eventSink(errMsg; publish=true)
result = createErrorToolResult(sprint(showerror, e))
isError = true
end
end
eventSink("finalizeExecutedToolCall 4"; publish=false, log=true)
eventSink("finalizeExecutedToolCall 4"; publish=true)
return finalizedOutcome(prep.toolCall, result, isError)
end
@@ -1264,39 +1259,39 @@ function executeToolCallsSequential(
signal::abortSignal,
eventSink,
)::agentToolCallBatch
eventSink("executeToolCallsSequential 1"; publish=false, log=true)
eventSink("executeToolCallsSequential 1"; publish=true)
finalizedCalls = finalizedOutcome[]
messages = toolResultMessage[]
for tc in toolCalls
eventSink("start tool execute $(tc.id), $(tc.name), $(tc.arguments)"; publish=false, log=true)
eventSink("start tool execute $(tc.id), $(tc.name), $(tc.arguments)"; publish=true)
prep = prepareToolCall(context, assistantMsg, tc, config, signal, eventSink)
eventSink("executeToolCallsSequential " * string(prep.args); publish=false, log=true)
eventSink("executeToolCallsSequential " * string(prep.args); publish=true)
if prep isa immediateOutcome
eventSink("executeToolCallsSequential 2-1"; publish=false, log=true)
eventSink("executeToolCallsSequential 2-1"; publish=true)
finalized = finalizedOutcome(tc, prep.result, prep.isError)
eventSink("executeToolCallsSequential 2-2"; publish=false, log=true)
eventSink("executeToolCallsSequential 2-2"; publish=true)
else
eventSink("executeToolCallsSequential 3"; publish=false, log=true)
eventSink("executeToolCallsSequential 3"; publish=true)
executed = executePreparedToolCall(prep, signal, eventSink)
eventSink("executeToolCallsSequential 3-1"; publish=false, log=true)
eventSink("executeToolCallsSequential 3-1"; publish=true)
finalized = finalizeExecutedToolCall(context, assistantMsg, prep, executed, config,
signal, eventSink)
eventSink("executeToolCallsSequential 3-2"; publish=false, log=true)
eventSink("executeToolCallsSequential 3-2"; publish=true)
end
eventSink("executeToolCallsSequential 4"; publish=false, log=true)
eventSink("executeToolCallsSequential 4"; publish=true)
# eventSink("finalized $(finalized.toolCall.id), $(finalized.toolCall.name),
# $(finalized.result), $(finalized.isError)"; publish=false, log=true)
# $(finalized.result), $(finalized.isError)"; publish=true)
push!(messages, createToolResultMessage(finalized))
push!(finalizedCalls, finalized)
eventSink("executeToolCallsSequential 5"; publish=false, log=true)
eventSink("executeToolCallsSequential 5"; publish=true)
if signal !== nothing && signal.aborted
break
end
end
eventSink("executeToolCallsSequential 6"; publish=false, log=true)
eventSink("executeToolCallsSequential 6"; publish=true)
return agentToolCallBatch(messages, shouldTerminate(finalizedCalls))
end
@@ -1369,7 +1364,7 @@ function executeToolCallsParallel(
entries = Union{finalizedOutcome,Task}[]
for tc in toolCalls
eventSink(toolExecStartEvent(tc.id, tc.name, tc.arguments); publish=false, log=true)
eventSink(toolExecStartEvent(tc.id, tc.name, tc.arguments); publish=true)
prep = prepareToolCall(context, assistantMsg, tc, config, signal, eventSink)
@@ -1468,7 +1463,7 @@ function executeToolCalls(
eventSink,
)::agentToolCallBatch
eventSink("_executeToolCalls 1"; publish=false, log=true)
eventSink("_executeToolCalls 1"; publish=true)
hasSequential = false
for tc in toolCalls
t = get(context.tools, tc.name, nothing)
@@ -1477,13 +1472,13 @@ function executeToolCalls(
break
end
end
eventSink("_executeToolCalls 2"; publish=false, log=true)
eventSink("_executeToolCalls 2"; publish=true)
if config.toolExecution == "sequential" || hasSequential
eventSink("_executeToolCalls 3"; publish=false, log=true)
eventSink("_executeToolCalls 3"; publish=true)
return executeToolCallsSequential(context, assistantMsg, toolCalls, config, signal,
eventSink)
else
eventSink("_executeToolCalls 4"; publish=false, log=true)
eventSink("_executeToolCalls 4"; publish=true)
return executeToolCallsParallel(context, assistantMsg, toolCalls, config, signal,
eventSink)
end