Public/AI/Invoke-TechAgent.ps1
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function Invoke-TechAgent { <# .SYNOPSIS Sends a prompt to the TechToolbox local agent. .DESCRIPTION This function calls the TechToolbox.Agent C# runtime and prints the agent's response. .PARAMETER Prompt The natural-language instruction for the agent. .PARAMETER PromptFile Optional path to a prompt text file. If omitted and -Prompt is empty, Invoke-TechAgent attempts to load a default prompt file. .PARAMETER Model Optional Ollama model name (for example: phi4:14b, deepcoder:14b, medgemma1.5:4b). Mandatory if using OpenAI. .PARAMETER Provider LLM provider to use. Supported values: ollama, openai, openai-compatible, azure-openai. .PARAMETER Endpoint Optional provider endpoint URL. For Azure OpenAI, this should be the resource endpoint (for example https://name.openai.azure.com). .PARAMETER Deployment Azure OpenAI deployment name. .PARAMETER ApiVersion API version for cloud providers that require it. .PARAMETER ApiKeyEnvVar Environment variable name that holds the cloud API key. Defaults to TT_AGENT_LLM_API_KEY. .PARAMETER ApiKeyEncrypted Prefers encrypted config-based API key resolution and skips environment variable lookup. Use this when you want to force stored secret usage. .PARAMETER ApiKeyEncryptedBlob Optional DPAPI-protected API key blob produced by ConvertFrom-SecureString. When provided, this overrides settings.agent.apiKeyEncrypted. .PARAMETER DisableApiKeyPrompt Disables interactive prompt for capturing and storing a missing cloud API key. Use this for non-interactive automation scenarios. .PARAMETER MaxIterations Maximum number of tool/reasoning iterations before the agent concludes. .PARAMETER PromptHistoryItems Number of recent memory history entries to inject into prompt context. Set to 0 to disable recent history injection for this run. .PARAMETER Mode Controls whether the agent should execute tools (`execute`), produce a no-tool implementation plan (`plan`), or provide no-tool analysis (`analyze`), or stay in sandboxed chat mode (`chat`). .PARAMETER StrictPromptPreflight Turns prompt preflight warnings into a blocking validation failure when prompt quality is too low for reliable execution. .PARAMETER AutoPromptHint Prints a preflight-ready prompt rewrite suggestion when warnings or critical preflight findings are detected. This does not alter the current run's prompt. .PARAMETER AutoRerunFromHint Performs a single preflight rewrite pass using the generated prompt hint when prompt quality is weak. The command then continues with the rewritten prompt for this run only. .PARAMETER OutputContract Final response format contract. `markdown` allows Markdown output, `plain-text` requires plain text only, and `json` requires valid JSON object or array text in the final answer. .PARAMETER QualityProfile Sampling profile for response quality tuning. `precise` is deterministic, `balanced` is default, and `creative` increases variation. .PARAMETER ThinkingMode Thinking mode preference for models that support deeper reasoning. Supported values: `auto`, `on`, `off`. .PARAMETER ReasoningEffort Optional explicit reasoning effort override for GPT-5.3-Codex responses. Supported values: `low`, `medium`, `high`, `xhigh`. .PARAMETER ReasoningEffortAuto Automatically selects reasoning effort when no explicit override is supplied. .PARAMETER Quiet Legacy compatibility switch. Agent traces are now suppressed by default. .PARAMETER ConfirmDestructive Explicitly authorizes destructive operations for this run. .PARAMETER SignedFilePolicy Policy to use when overwriting an existing Authenticode-signed PowerShell file. 'ignore' blocks the overwrite and 'strip' allows the overwrite while removing the signature block text. .PARAMETER AutoRetryOnRecursion Enables a single automatic retry when the C# agent hits an iteration limit. .PARAMETER DisableAutoRetryOnRecursion Disables recursion-limit auto-retry for this invocation, overriding environment defaults. .PARAMETER NoTranscript Disables the per-run console transcript log. .PARAMETER AllowMetaTools Allows higher-order meta tools (for example Invoke-TechAgent) to be available to the agent for this run. Disabled by default to reduce recursive orchestration loops. .EXAMPLE Invoke-TechAgent "Run system diagnostics and summarize findings." .LINK https://dan-damit.github.io/TechToolbox-Docs/Invoke-TechAgent #> [CmdletBinding()] param( [Parameter(Position = 0)] [ValidateNotNullOrEmpty()] [string]$Prompt, [Parameter()] [string]$PromptFile, [Parameter()] [ValidateNotNullOrEmpty()] [string]$Model, [Parameter()] [string]$RuntimeProfile, [Parameter()] [ValidateSet('ollama', 'openai', 'openai-compatible', 'azure-openai')] [string]$Provider, [Parameter()] [string]$Endpoint, [Parameter()] [string]$Deployment, [Parameter()] [string]$ApiVersion, [Parameter()] [ValidateNotNullOrEmpty()] [string]$ApiKeyEnvVar, [Parameter()] [switch]$ApiKeyEncrypted, [Parameter()] [string]$ApiKeyEncryptedBlob, [Parameter()] [switch]$DisableApiKeyPrompt, [Parameter()] [ValidateRange(1, 500)] [int]$MaxIterations = 15, [Parameter()] [ValidateRange(0, 20)] [int]$PromptHistoryItems, [Parameter()] [ValidateSet('execute', 'plan', 'analyze', 'chat')] [string]$Mode, [Parameter()] [switch]$StrictPromptPreflight, [Parameter()] [switch]$AutoPromptHint, [Parameter()] [switch]$AutoRerunFromHint, [Parameter()] [ValidateSet('markdown', 'plain-text', 'json')] [string]$OutputContract, [Parameter()] [ValidateSet('precise', 'balanced', 'creative')] [string]$QualityProfile, [Parameter()] [ValidateSet('auto', 'on', 'off')] [string]$ThinkingMode, [Parameter()] [ValidateSet('low', 'medium', 'high', 'xhigh')] [string]$ReasoningEffort, [Parameter()] [switch]$ReasoningEffortAuto, [Parameter()] [switch]$Quiet, [Parameter()] [switch]$ConfirmDestructive, [Parameter()] [ValidateSet('ignore', 'strip')] [string]$SignedFilePolicy, [Parameter()] [switch]$AutoRetryOnRecursion, [Parameter()] [switch]$DisableAutoRetryOnRecursion, [Parameter()] [bool]$NoTranscript = $true, [Parameter()] [switch]$AllowMetaTools, [Parameter()] [pscredential]$ToolCredential, [Parameter()] [ValidateNotNullOrEmpty()] [string]$ToolCredentialVariableName = 'dac' ) # Initialize the TechToolbox runtime and load agent configuration Initialize-TechToolboxRuntime $cfg = $script:cfg.settings.agent if ([string]::IsNullOrWhiteSpace($Model) -and $cfg -and -not [string]::IsNullOrWhiteSpace($cfg.model)) { $Model = $cfg.model } if ([string]::IsNullOrWhiteSpace($RuntimeProfile) -and $cfg -and -not [string]::IsNullOrWhiteSpace([string]$cfg.runtimeProfile)) { $RuntimeProfile = [string]$cfg.runtimeProfile } if ([string]::IsNullOrWhiteSpace($Provider) -and $cfg -and -not [string]::IsNullOrWhiteSpace([string]$cfg.provider)) { $Provider = [string]$cfg.provider } if ([string]::IsNullOrWhiteSpace($Provider)) { $Provider = 'ollama' } $Provider = $Provider.Trim().ToLowerInvariant() $moduleRoot = Get-ModuleRoot $promptSourceLabel = 'inline -Prompt' if (-not [string]::IsNullOrWhiteSpace($Prompt) -and -not [string]::IsNullOrWhiteSpace($PromptFile)) { throw 'Invoke-TechAgent: Specify only one prompt source: -Prompt or -PromptFile.' } if (-not [string]::IsNullOrWhiteSpace($PromptFile)) { $resolvedPromptPath = if ([System.IO.Path]::IsPathRooted($PromptFile)) { $PromptFile } else { Join-Path $moduleRoot $PromptFile } if (-not (Test-Path -LiteralPath $resolvedPromptPath -PathType Leaf)) { throw "Invoke-TechAgent: Prompt file not found: $resolvedPromptPath" } $Prompt = Get-Content -LiteralPath $resolvedPromptPath -Raw if ([string]::IsNullOrWhiteSpace($Prompt)) { throw "Invoke-TechAgent: Prompt file is empty: $resolvedPromptPath" } $promptSourceLabel = "-PromptFile ($resolvedPromptPath)" } elseif ([string]::IsNullOrWhiteSpace($Prompt)) { $defaultPromptFile = $null if ($cfg -and $cfg.defaultPromptFile -and -not [string]::IsNullOrWhiteSpace([string]$cfg.defaultPromptFile)) { $defaultPromptFile = [string]$cfg.defaultPromptFile } if ([string]::IsNullOrWhiteSpace($defaultPromptFile)) { $defaultPromptFile = 'AI\prompt.txt' } $resolvedDefaultPromptPath = if ([System.IO.Path]::IsPathRooted($defaultPromptFile)) { $defaultPromptFile } else { Join-Path $moduleRoot $defaultPromptFile } if (-not (Test-Path -LiteralPath $resolvedDefaultPromptPath -PathType Leaf)) { throw ( 'Invoke-TechAgent: No prompt text supplied and default prompt file was not found: {0}. ' + 'Provide -Prompt, provide -PromptFile, or create the default prompt file.' -f $resolvedDefaultPromptPath ) } $Prompt = Get-Content -LiteralPath $resolvedDefaultPromptPath -Raw if ([string]::IsNullOrWhiteSpace($Prompt)) { throw "Invoke-TechAgent: Default prompt file is empty: $resolvedDefaultPromptPath" } $promptSourceLabel = "default prompt file ($resolvedDefaultPromptPath)" } $resolvedExecutionMode = Resolve-TTAgentExecutionMode -ModeFromParam $Mode -ConfigObject $cfg -ParamWasBound $PSBoundParameters.ContainsKey('Mode') $resolvedOutputContract = Resolve-TTAgentOutputContract -ContractFromParam $OutputContract -ConfigObject $cfg -ParamWasBound $PSBoundParameters.ContainsKey('OutputContract') $resolvedQualityProfile = Resolve-TTAgentQualityProfile -ProfileFromParam $QualityProfile -ConfigObject $cfg -ParamWasBound $PSBoundParameters.ContainsKey('QualityProfile') $expandedFollowUpPrompt = Expand-TTAgentOptionZipFollowUpPrompt -PromptText $Prompt -Mode $resolvedExecutionMode if (-not [string]::Equals($expandedFollowUpPrompt, $Prompt, [System.StringComparison]::Ordinal)) { Write-Log -Level Info -Message ( "`nInvoke-TechAgent: normalized terse option follow-up prompt into explicit ZIP-based weather retry prompt." ) $Prompt = $expandedFollowUpPrompt $promptSourceLabel = 'option-follow-up normalization' } $resolvedThinkingMode = if ($PSBoundParameters.ContainsKey('ThinkingMode') -and -not [string]::IsNullOrWhiteSpace($ThinkingMode)) { $ThinkingMode.Trim().ToLowerInvariant() } elseif ($cfg -and $cfg.PSObject.Properties['thinkingMode']) { [string]$cfg.thinkingMode } else { 'auto' } if ([string]::IsNullOrWhiteSpace($resolvedThinkingMode)) { $resolvedThinkingMode = 'auto' } $resolvedThinkingMode = $resolvedThinkingMode.Trim().ToLowerInvariant() switch ($resolvedThinkingMode) { 'on' { $resolvedThinkingEnabled = $true } 'off' { $resolvedThinkingEnabled = $false } default { $resolvedThinkingEnabled = $resolvedExecutionMode -eq 'analyze' -or $resolvedExecutionMode -eq 'plan' -or $resolvedExecutionMode -eq 'chat' } } $resolvedReasoningEffort = $null if ($PSBoundParameters.ContainsKey('ReasoningEffort') -and -not [string]::IsNullOrWhiteSpace($ReasoningEffort)) { $resolvedReasoningEffort = $ReasoningEffort.Trim().ToLowerInvariant() } elseif ($cfg -and $cfg.PSObject.Properties['reasoningEffort']) { $resolvedReasoningEffort = [string]$cfg.reasoningEffort } if (-not [string]::IsNullOrWhiteSpace($resolvedReasoningEffort)) { $resolvedReasoningEffort = $resolvedReasoningEffort.Trim().ToLowerInvariant() switch ($resolvedReasoningEffort) { 'low' { } 'medium' { } 'high' { } 'xhigh' { } default { Write-Warning ( "`nInvoke-TechAgent: Ignoring unsupported reasoning effort value '{0}'. Supported values: low, medium, high, xhigh." -f $resolvedReasoningEffort ) $resolvedReasoningEffort = $null } } } $resolvedReasoningEffortAuto = $false if ($PSBoundParameters.ContainsKey('ReasoningEffortAuto')) { $resolvedReasoningEffortAuto = $ReasoningEffortAuto.IsPresent } elseif ($cfg -and $cfg.PSObject.Properties['reasoningEffortAuto']) { $resolvedReasoningEffortAuto = [bool]$cfg.reasoningEffortAuto } $qualitySettings = switch ($resolvedQualityProfile) { 'precise' { [ordered]@{ Temperature = '0.10'; TopP = '0.85'; RepeatPenalty = '1.10' } break } 'creative' { [ordered]@{ Temperature = '0.50'; TopP = '0.95'; RepeatPenalty = '1.00' } break } default { [ordered]@{ Temperature = '0.20'; TopP = '0.90'; RepeatPenalty = '1.05' } break } } $preflight = Invoke-TTAgentPromptPreflight -PromptText $Prompt -Mode $resolvedExecutionMode $preflightScore = [int]$preflight.Score $preflightWarningCount = @($preflight.Warnings).Count $preflightCriticalCount = @($preflight.Critical).Count Write-Log -Level Info -Message ( "`nTech agent prompt preflight: score={0}/100 mode={1} outputContract={2} qualityProfile={3} source={4}" -f $preflightScore, $resolvedExecutionMode, $resolvedOutputContract, $resolvedQualityProfile, $promptSourceLabel ) Write-Log -Level Info -Message ( "Tech agent reasoning effort settings: override={0} auto={1}" -f $(if ([string]::IsNullOrWhiteSpace($resolvedReasoningEffort)) { '(none)' } else { $resolvedReasoningEffort }), $resolvedReasoningEffortAuto ) if ($StrictPromptPreflight.IsPresent) { foreach ($warning in @($preflight.Warnings)) { Write-Warning ("`nInvoke-TechAgent preflight: {0}" -f $warning) } if (@($preflight.Critical).Count -gt 0) { foreach ($criticalMessage in @($preflight.Critical)) { Write-Warning ("`nInvoke-TechAgent preflight critical: {0}" -f $criticalMessage) } } } if ($AutoPromptHint.IsPresent) { $hint = New-TTAgentAutoPromptHint ` -PromptText $Prompt ` -Mode $resolvedExecutionMode ` -OutputContract $resolvedOutputContract ` -WarningCount $preflightWarningCount ` -CriticalCount $preflightCriticalCount if (-not [string]::IsNullOrWhiteSpace($hint)) { Write-Log -Level Info -Message ("`nInvoke-TechAgent auto prompt hint:`n{0}" -f $hint) } } if ($AutoRerunFromHint.IsPresent) { $rerunHint = New-TTAgentAutoPromptHint ` -PromptText $Prompt ` -Mode $resolvedExecutionMode ` -OutputContract $resolvedOutputContract ` -WarningCount $preflightWarningCount ` -CriticalCount $preflightCriticalCount $shouldAutoRewritePrompt = ( -not [string]::IsNullOrWhiteSpace($rerunHint) -and ( $preflightCriticalCount -gt 0 -or $preflightScore -lt 60 -or $preflightWarningCount -ge 3 ) ) if ($shouldAutoRewritePrompt) { Write-Log -Level Warn -Message ( "`nInvoke-TechAgent auto rerun: applying one-time prompt rewrite from preflight hint." ) Write-Log -Level Info -Message ("Invoke-TechAgent auto rerun prompt:`n{0}" -f $rerunHint) $Prompt = $rerunHint $promptSourceLabel = 'auto-rerun hint rewrite' $preflight = Invoke-TTAgentPromptPreflight -PromptText $Prompt -Mode $resolvedExecutionMode $preflightScore = [int]$preflight.Score $preflightWarningCount = @($preflight.Warnings).Count $preflightCriticalCount = @($preflight.Critical).Count Write-Log -Level Info -Message ( "Invoke-TechAgent auto rerun preflight: score={0}/100 mode={1} outputContract={2} qualityProfile={3} source={4}" -f $preflightScore, $resolvedExecutionMode, $resolvedOutputContract, $resolvedQualityProfile, $promptSourceLabel ) foreach ($warning in @($preflight.Warnings)) { Write-Warning ("`nInvoke-TechAgent preflight (auto rerun): {0}" -f $warning) } foreach ($criticalMessage in @($preflight.Critical)) { Write-Warning ("`nInvoke-TechAgent preflight critical (auto rerun): {0}" -f $criticalMessage) } } } if ($StrictPromptPreflight.IsPresent) { if ($preflightScore -lt 60 -or @($preflight.Critical).Count -gt 0) { $criticalSummary = if (@($preflight.Critical).Count -eq 0) { 'none' } else { (@($preflight.Critical) -join '; ') } throw ( "Invoke-TechAgent preflight failed (score={0}/100, mode={1}). Critical issues: {2}" -f $preflightScore, $resolvedExecutionMode, $criticalSummary ) } } $waitTimeoutSeconds = [Math]::Max(300, ($MaxIterations * 180)) $waitPollSeconds = 15 $waitHeartbeatSeconds = 120 if ($cfg -and $cfg.wait) { $timeoutCfg = $cfg.wait.timeoutSeconds -as [int] if ($null -ne $timeoutCfg -and $timeoutCfg -gt 0) { $waitTimeoutSeconds = $timeoutCfg } $pollCfg = $cfg.wait.pollSeconds -as [int] if ($null -ne $pollCfg -and $pollCfg -gt 0) { $waitPollSeconds = $pollCfg } $heartbeatCfg = $cfg.wait.heartbeatSeconds -as [int] if ($null -ne $heartbeatCfg -and $heartbeatCfg -ge 0) { $waitHeartbeatSeconds = $heartbeatCfg } } $transcriptStarted = $false $transcriptPath = $null $markdownPath = $null $markdownStatus = 'NotStarted' $markdownError = $null $markdownRecoveryReason = $null $markdownPostflightReason = $null $markdownPostflightAchieved = $true $markdownResponseLength = 0 $markdownKnownFailureDetected = $false $markdownExpectedOutputExists = $false $capturedStdOut = '' $capturedStdErr = '' $runStartedUtc = [DateTime]::UtcNow $agentProc = $null $stdoutTask = $null $stderrTask = $null $requestPath = $null $resolvedApiKey = $null $toolCredentialPath = $null $expectedOutputPath = Resolve-TTAgentExpectedOutputPath -PromptText $Prompt $effectivePrompt = $Prompt if (-not [string]::IsNullOrWhiteSpace($expectedOutputPath)) { $effectivePrompt = @" $Prompt Hard requirement: - Create the output file at this exact path: $expectedOutputPath - Use WRITE-FILE to create/update the file. - Do not return a final answer until WRITE-FILE has succeeded. "@ } if ($AutoRetryOnRecursion.IsPresent -and $DisableAutoRetryOnRecursion.IsPresent) { throw 'Specify only one of -AutoRetryOnRecursion or -DisableAutoRetryOnRecursion.' } try { $moduleRoot = Get-ModuleRoot $assemblyCandidates = @( (Join-Path $moduleRoot 'AgentRuntime\TechToolbox.Agent\TechToolbox.Agent.dll'), (Join-Path $moduleRoot 'src\TechToolbox.Agent\bin\Release\net8.0\publish\TechToolbox.Agent.dll'), (Join-Path $moduleRoot 'src\TechToolbox.Agent\bin\Release\net8.0\TechToolbox.Agent.dll'), (Join-Path $moduleRoot 'src\TechToolbox.Agent\bin\Debug\net8.0\TechToolbox.Agent.dll') ) $agentAssemblyPath = $null foreach ($candidatePath in $assemblyCandidates) { if (Test-Path -LiteralPath $candidatePath -PathType Leaf) { $agentAssemblyPath = [string]$candidatePath break } } if ([string]::IsNullOrWhiteSpace($agentAssemblyPath)) { throw "TechToolbox.Agent assembly not found. Install the packaged agent runtime or build/publish src\TechToolbox.Agent." } Write-Log -Level Info -Message ("Tech agent runtime assembly: {0}`n" -f $agentAssemblyPath) # Invoke-TechAgent now uses an internal terminal-state wait loop. # Keeping this self-contained avoids helper load drift and improves reliability. if ($Provider -eq 'ollama' -and -not [string]::IsNullOrWhiteSpace($Model)) { $normalizedModelName = $Model.Trim() $isAutoRoutingAlias = ( $normalizedModelName -ieq 'auto' -or $normalizedModelName -ieq 'default' -or $normalizedModelName -ieq 'llama3' ) if (-not $isAutoRoutingAlias) { $ollamaCommand = Get-Command -Name ollama -ErrorAction SilentlyContinue if (-not $ollamaCommand) { throw "Ollama executable not found. Install Ollama or add it to PATH." } $ollamaListOutput = & $ollamaCommand.Source list 2>&1 if ($LASTEXITCODE -ne 0) { $ollamaError = ($ollamaListOutput | Out-String).Trim() throw ("Unable to query local Ollama models: {0}" -f $ollamaError) } $availableModels = @() foreach ($line in $ollamaListOutput) { $trimmed = "$line".Trim() if ([string]::IsNullOrWhiteSpace($trimmed)) { continue } if ($trimmed -match '^NAME\s+') { continue } $parts = $trimmed -split '\s+' if ($parts.Count -gt 0 -and -not [string]::IsNullOrWhiteSpace($parts[0])) { $availableModels += $parts[0] } } if (-not $availableModels) { throw ("No local Ollama models were found. Pull the requested model first: ollama pull {0}" -f $Model) } if ($availableModels -notcontains $Model) { $knownModels = ($availableModels | Sort-Object -Unique) -join ', ' throw ( "Ollama model '{0}' is not available locally. Run: ollama pull {0}. Available models: {1}" -f $Model, $knownModels ) } } } $transcriptEnabled = $true $transcriptRoot = $null $markdownEnabled = $true $markdownRoot = $null if ($cfg -and $cfg.transcript) { if ($null -ne $cfg.transcript.enabled) { $transcriptEnabled = [bool]$cfg.transcript.enabled } if (-not [string]::IsNullOrWhiteSpace([string]$cfg.transcript.outputRoot)) { $transcriptRoot = [string]$cfg.transcript.outputRoot } $markdownEnabledProperty = $cfg.transcript.PSObject.Properties['markdownEnabled'] if ($null -ne $markdownEnabledProperty -and $null -ne $markdownEnabledProperty.Value) { $markdownEnabled = [bool]$markdownEnabledProperty.Value } $markdownOutputRootProperty = $cfg.transcript.PSObject.Properties['markdownOutputRoot'] if ($null -ne $markdownOutputRootProperty -and -not [string]::IsNullOrWhiteSpace([string]$markdownOutputRootProperty.Value)) { $markdownRoot = [string]$markdownOutputRootProperty.Value } } if ($NoTranscript) { $transcriptEnabled = $false } if ($transcriptEnabled) { if ([string]::IsNullOrWhiteSpace($transcriptRoot)) { $transcriptRoot = Join-Path $moduleRoot 'LogsAndExports\Logs\TechAgentTranscripts' } try { $null = New-Item -ItemType Directory -Path $transcriptRoot -Force $transcriptPath = Join-Path $transcriptRoot ("TechAgent_{0}_{1}.txt" -f (Get-Date -Format 'yyyyMMdd_HHmmss'), $PID) Start-Transcript -Path $transcriptPath -Force | Out-Null $transcriptStarted = $true Write-Log -Level Info -Message ("Tech agent transcript started: {0}" -f $transcriptPath) } catch { Write-Log -Level Warn -Message ("Tech agent transcript could not be started: {0}" -f $_.Exception.Message) } } if ($markdownEnabled) { if ([string]::IsNullOrWhiteSpace($markdownRoot)) { $markdownRoot = Join-Path $moduleRoot 'LogsAndExports\Logs\TechAgentMarkdown' } try { $null = New-Item -ItemType Directory -Path $markdownRoot -Force $markdownPath = Join-Path $markdownRoot ("TechAgent_{0}_{1}.md" -f (Get-Date -Format 'yyyyMMdd_HHmmss'), $PID) } catch { $markdownPath = $null Write-Log -Level Warn -Message ("Tech agent markdown log could not be initialized: {0}" -f $_.Exception.Message) } } if ($ConfirmDestructive.IsPresent) { Write-Log -Level Warn -Message "Destructive operations explicitly authorized for this run." } $autoRetryOnIterationLimit = $false if ($AutoRetryOnRecursion.IsPresent) { $autoRetryOnIterationLimit = $true } elseif ($DisableAutoRetryOnRecursion.IsPresent) { $autoRetryOnIterationLimit = $false } if ([string]::IsNullOrWhiteSpace($Endpoint)) { $endpointValue = Get-TTAgentConfigValue -ConfigObject $cfg -KeyName 'endpoint' if (-not [string]::IsNullOrWhiteSpace([string]$endpointValue)) { $Endpoint = [string]$endpointValue } } if ([string]::IsNullOrWhiteSpace($Deployment)) { $deploymentValue = Get-TTAgentConfigValue -ConfigObject $cfg -KeyName 'deployment' if (-not [string]::IsNullOrWhiteSpace([string]$deploymentValue)) { $Deployment = [string]$deploymentValue } } if ([string]::IsNullOrWhiteSpace($ApiVersion)) { $apiVersionValue = Get-TTAgentConfigValue -ConfigObject $cfg -KeyName 'apiVersion' if (-not [string]::IsNullOrWhiteSpace([string]$apiVersionValue)) { $ApiVersion = [string]$apiVersionValue } } if ([string]::IsNullOrWhiteSpace($ApiKeyEnvVar)) { $apiKeyEnvVarValue = Get-TTAgentConfigValue -ConfigObject $cfg -KeyName 'apiKeyEnvVar' if (-not [string]::IsNullOrWhiteSpace([string]$apiKeyEnvVarValue)) { $ApiKeyEnvVar = [string]$apiKeyEnvVarValue } } if ([string]::IsNullOrWhiteSpace($ApiKeyEnvVar)) { $ApiKeyEnvVar = 'TT_AGENT_LLM_API_KEY' } if ($Provider -ne 'ollama') { $apiKeyResolution = Resolve-TTAgentCloudApiKey -ConfigObject $cfg -ProviderName $Provider -EnvVarName $ApiKeyEnvVar -EncryptedOverride $ApiKeyEncryptedBlob -PreferEncryptedOnly:$ApiKeyEncrypted $resolvedApiKey = [string]$apiKeyResolution.Key if ([string]::IsNullOrWhiteSpace($resolvedApiKey)) { $promptResolution = Request-TTAgentCloudApiKeyPersistence -ProviderName $Provider -EnvVarName $ApiKeyEnvVar -DisableApiKeyPrompt $DisableApiKeyPrompt.IsPresent if (-not [string]::IsNullOrWhiteSpace([string]$promptResolution.Key)) { $resolvedApiKey = [string]$promptResolution.Key $apiKeyResolution = $promptResolution } elseif (-not [string]::IsNullOrWhiteSpace([string]$promptResolution.Error)) { throw ( "Cloud provider '{0}' API key prompt/store failed via {1}: {2}" -f $Provider, $promptResolution.Source, $promptResolution.Error ) } } if ([string]::IsNullOrWhiteSpace($resolvedApiKey)) { if (-not [string]::IsNullOrWhiteSpace([string]$apiKeyResolution.Error)) { throw ( "Cloud provider '{0}' API key resolution failed via {1}: {2}" -f $Provider, $apiKeyResolution.Source, $apiKeyResolution.Error ) } throw ( "Cloud provider '{0}' requires an API key. Set environment variable '{1}', configure settings.agent.apiKeyEncrypted in config.secrets.json, run Set-TechAgentApiKey, or run interactively to store one now." -f $Provider, $ApiKeyEnvVar ) } if ($Provider -eq 'azure-openai' -and [string]::IsNullOrWhiteSpace($Deployment)) { throw "Provider 'azure-openai' requires -Deployment (or settings.agent.deployment)." } } $resolvedAutoModelRoutingEnabled = $true $resolvedAutoModelRoutingThreshold = 50 if ($cfg -and $cfg.PSObject.Properties['autoModelRouting']) { $autoModelRoutingConfig = $cfg.autoModelRouting if ($null -ne $autoModelRoutingConfig) { $autoModelRoutingEnabledValue = $null if ($autoModelRoutingConfig.PSObject.Properties['enabled']) { $autoModelRoutingEnabledValue = $autoModelRoutingConfig.enabled } if ($null -ne $autoModelRoutingEnabledValue) { $resolvedAutoModelRoutingEnabled = [bool]$autoModelRoutingEnabledValue } $autoModelRoutingThresholdValue = $null if ($autoModelRoutingConfig.PSObject.Properties['threshold']) { $autoModelRoutingThresholdValue = $autoModelRoutingConfig.threshold } if ($null -ne $autoModelRoutingThresholdValue) { [int]$parsedThreshold = 50 if ([int]::TryParse([string]$autoModelRoutingThresholdValue, [ref]$parsedThreshold)) { $resolvedAutoModelRoutingThreshold = [Math]::Max(0, [Math]::Min(100, $parsedThreshold)) } } } } $resolvedModel = $Model if ([string]::IsNullOrWhiteSpace($resolvedModel)) { if ($Provider -eq 'ollama') { if ($resolvedAutoModelRoutingEnabled) { $resolvedModel = 'auto' } else { $resolvedModel = 'llama3' } } elseif ($Provider -ne 'azure-openai') { throw "Provider '$Provider' requires -Model (or settings.agent.model)." } else { $resolvedModel = '' } } if ($Provider -eq 'ollama') { $normalizedResolvedModel = if ($null -ne $resolvedModel) { $resolvedModel.Trim() } else { '' } $isAutoRoutingAlias = ( [string]::IsNullOrWhiteSpace($normalizedResolvedModel) -or $normalizedResolvedModel -ieq 'auto' -or $normalizedResolvedModel -ieq 'default' -or $normalizedResolvedModel -ieq 'llama3' ) if ($isAutoRoutingAlias) { try { $llmClientFactoryType = $null try { $llmClientFactoryType = [TechToolbox.Agent.Llm.LlmClientFactory] } catch { $null = Add-Type -Path $agentAssemblyPath -ErrorAction Stop $llmClientFactoryType = [TechToolbox.Agent.Llm.LlmClientFactory] } if ($null -ne $llmClientFactoryType) { $selectedPromptModel = $llmClientFactoryType::SelectModelForPrompt( $effectivePrompt, $resolvedExecutionMode, $preflightScore, 0, $null, $resolvedAutoModelRoutingEnabled, $resolvedAutoModelRoutingThreshold ) if (-not [string]::IsNullOrWhiteSpace([string]$selectedPromptModel)) { $resolvedModel = [string]$selectedPromptModel } } } catch { Write-Log -Level Warn -Message ("Unable to resolve the effective Ollama model for this run. Keeping the alias value '{0}' in markdown output: {1}" -f $resolvedModel, $_.Exception.Message) } } } if (-not [string]::IsNullOrWhiteSpace($RuntimeProfile)) { $RuntimeProfile = $RuntimeProfile.Trim() } if ([string]::IsNullOrWhiteSpace($RuntimeProfile)) { $RuntimeProfile = $null } $runtimeProfilesJson = $null $runtimeProfilesConfig = Get-TTAgentConfigValue -ConfigObject $cfg -KeyName 'runtimeProfiles' if ($null -ne $runtimeProfilesConfig) { try { $runtimeProfilesJson = $runtimeProfilesConfig | ConvertTo-Json -Depth 12 -Compress } catch { Write-Log -Level Warn -Message ("Failed to serialize settings.agent.runtimeProfiles: {0}" -f $_.Exception.Message) $runtimeProfilesJson = $null } } $resiliencePolicyJson = $null $resilienceConfig = Get-TTAgentConfigValue -ConfigObject $cfg -KeyName 'resilience' if ($null -eq $resilienceConfig) { $resilienceConfig = Get-TTAgentConfigValue -ConfigObject $cfg -KeyName 'resiliencePolicy' } if ($null -ne $resilienceConfig) { try { $resiliencePolicyJson = $resilienceConfig | ConvertTo-Json -Depth 12 -Compress } catch { Write-Log -Level Warn -Message ("Failed to serialize settings.agent.resilience: {0}" -f $_.Exception.Message) $resiliencePolicyJson = $null } } $memoryPath = $null $memoryPathValue = Get-TTAgentConfigValue -ConfigObject $cfg -KeyName 'memoryPath' if (-not [string]::IsNullOrWhiteSpace([string]$memoryPathValue)) { $memoryPath = [string]$memoryPathValue } [int]$resolvedPromptHistoryItems = 2 if ($PSBoundParameters.ContainsKey('PromptHistoryItems')) { $resolvedPromptHistoryItems = [int]$PromptHistoryItems } else { $promptHistoryItemsValue = Get-TTAgentConfigValue -ConfigObject $cfg -KeyName 'promptHistoryItems' if ($null -ne $promptHistoryItemsValue) { [int]$parsedPromptHistoryItems = 0 if ([int]::TryParse([string]$promptHistoryItemsValue, [ref]$parsedPromptHistoryItems)) { $resolvedPromptHistoryItems = $parsedPromptHistoryItems } } } $resolvedPromptHistoryItems = [Math]::Max(0, [Math]::Min(20, $resolvedPromptHistoryItems)) if (-not [string]::IsNullOrWhiteSpace($memoryPath)) { try { $memoryDirectory = Split-Path -Path $memoryPath -Parent if (-not [string]::IsNullOrWhiteSpace($memoryDirectory)) { $null = New-Item -ItemType Directory -Path $memoryDirectory -Force } if (-not (Test-Path -LiteralPath $memoryPath -PathType Leaf)) { $memorySeed = @{ preferences = @{} facts = @{} _memoryFormatVersion = 2 history = @() } | ConvertTo-Json -Depth 4 Set-Content -LiteralPath $memoryPath -Value $memorySeed -Encoding utf8 Write-Log -Level Info -Message ("Initialized missing agent memory file: {0}" -f $memoryPath) } $memoryHistoryPath = Join-Path $memoryDirectory (([System.IO.Path]::GetFileNameWithoutExtension($memoryPath)) + '.history.json') if (-not (Test-Path -LiteralPath $memoryHistoryPath -PathType Leaf)) { Set-Content -LiteralPath $memoryHistoryPath -Value '[]' -Encoding utf8 Write-Log -Level Info -Message ("Initialized missing agent memory history file: {0}" -f $memoryHistoryPath) } } catch { throw ("Failed to initialize agent memory files at '{0}': {1}" -f $memoryPath, $_.Exception.Message) } } $diagnosticTracePath = $null $diagnosticTracePathValue = Get-TTAgentConfigValue -ConfigObject $cfg -KeyName 'diagnosticTracePath' if (-not [string]::IsNullOrWhiteSpace([string]$diagnosticTracePathValue)) { $diagnosticTracePath = [string]$diagnosticTracePathValue Write-Log -Level Info -Message ("Tech agent diagnostic trace path: {0}" -f $diagnosticTracePath) } $allowedFetchHosts = @() $fetchConfigValue = Get-TTAgentConfigValue -ConfigObject $cfg -KeyName 'fetch' if ($null -ne $fetchConfigValue) { $allowedHostsValue = Get-TTAgentConfigValue -ConfigObject $fetchConfigValue -KeyName 'allowedHosts' if ($null -ne $allowedHostsValue) { foreach ($host in @($allowedHostsValue)) { $hostText = [string]$host if ([string]::IsNullOrWhiteSpace($hostText)) { continue } $normalizedHost = $hostText.Trim().Trim('.').ToLowerInvariant() if ([string]::IsNullOrWhiteSpace($normalizedHost)) { continue } if ($allowedFetchHosts -notcontains $normalizedHost) { $allowedFetchHosts += $normalizedHost } } } } $searchWebProvider = 'brave' $searchWebEndpoint = $null $searchWebApiKeyEnvVar = 'TT_AGENT_SEARCH_WEB_API_KEY' $searchWebCountry = 'us' $searchWebLanguage = 'en' $searchWebSafeSearch = 'moderate' $searchWebDefaultCount = 5 $searchWebConfigValue = Get-TTAgentConfigValue -ConfigObject $cfg -KeyName 'searchWeb' if ($null -ne $searchWebConfigValue) { $searchProviderValue = Get-TTAgentConfigValue -ConfigObject $searchWebConfigValue -KeyName 'provider' if (-not [string]::IsNullOrWhiteSpace([string]$searchProviderValue)) { $searchWebProvider = [string]$searchProviderValue } $searchEndpointValue = Get-TTAgentConfigValue -ConfigObject $searchWebConfigValue -KeyName 'endpoint' if (-not [string]::IsNullOrWhiteSpace([string]$searchEndpointValue)) { $searchWebEndpoint = [string]$searchEndpointValue } $searchApiKeyEnvVarValue = Get-TTAgentConfigValue -ConfigObject $searchWebConfigValue -KeyName 'apiKeyEnvVar' if (-not [string]::IsNullOrWhiteSpace([string]$searchApiKeyEnvVarValue)) { $searchWebApiKeyEnvVar = [string]$searchApiKeyEnvVarValue } $searchCountryValue = Get-TTAgentConfigValue -ConfigObject $searchWebConfigValue -KeyName 'country' if (-not [string]::IsNullOrWhiteSpace([string]$searchCountryValue)) { $searchWebCountry = [string]$searchCountryValue } $searchLanguageValue = Get-TTAgentConfigValue -ConfigObject $searchWebConfigValue -KeyName 'language' if (-not [string]::IsNullOrWhiteSpace([string]$searchLanguageValue)) { $searchWebLanguage = [string]$searchLanguageValue } $searchSafeSearchValue = Get-TTAgentConfigValue -ConfigObject $searchWebConfigValue -KeyName 'safeSearch' if (-not [string]::IsNullOrWhiteSpace([string]$searchSafeSearchValue)) { $searchWebSafeSearch = [string]$searchSafeSearchValue } $searchDefaultCountValue = Get-TTAgentConfigValue -ConfigObject $searchWebConfigValue -KeyName 'defaultCount' if ($null -ne $searchDefaultCountValue) { [int]$parsedSearchCount = 0 if ([int]::TryParse([string]$searchDefaultCountValue, [ref]$parsedSearchCount)) { $searchWebDefaultCount = $parsedSearchCount } } } $resolvedSearchWebApiKey = $null if (-not [string]::IsNullOrWhiteSpace($searchWebApiKeyEnvVar)) { $searchWebApiKeyResolution = Resolve-TTAgentStoredSecret -ConfigObject $cfg -SecretKeyName 'searchWebApiKeyEncrypted' -EnvVarName $searchWebApiKeyEnvVar $resolvedSearchWebApiKey = [string]$searchWebApiKeyResolution.Key } $request = [ordered]@{ Prompt = $effectivePrompt Model = $resolvedModel ExecutionMode = $resolvedExecutionMode OutputContract = $resolvedOutputContract QualityProfile = $resolvedQualityProfile ThinkingMode = $resolvedThinkingMode ReasoningEffort = $resolvedReasoningEffort ReasoningEffortAuto = $resolvedReasoningEffortAuto PromptPreflightScore = $preflightScore PromptPreflightWarningCount = $preflightWarningCount PromptPreflightCriticalCount = $preflightCriticalCount RuntimeProfile = $RuntimeProfile RuntimeProfilesJson = $runtimeProfilesJson ResiliencePolicyJson = $resiliencePolicyJson Verbose = $false MaxIterations = $MaxIterations PromptHistoryItems = $resolvedPromptHistoryItems ConfirmDestructive = $ConfirmDestructive.IsPresent MemoryPath = $memoryPath AutoRetryOnRecursion = $autoRetryOnIterationLimit ReturnMetadata = $false SignedFilePolicy = $(if ([string]::IsNullOrWhiteSpace($SignedFilePolicy)) { 'ignore' } else { $SignedFilePolicy }) DiagnosticTracePath = $diagnosticTracePath ExpectedOutputPath = $expectedOutputPath AllowedFetchHosts = @($allowedFetchHosts) SearchWebProvider = $searchWebProvider SearchWebEndpoint = $searchWebEndpoint SearchWebApiKeyEnvVar = $searchWebApiKeyEnvVar SearchWebCountry = $searchWebCountry SearchWebLanguage = $searchWebLanguage SearchWebSafeSearch = $searchWebSafeSearch SearchWebDefaultCount = $searchWebDefaultCount AllowMetaTools = $AllowMetaTools.IsPresent LlmProvider = $Provider LlmEndpoint = $Endpoint LlmDeployment = $Deployment LlmApiVersion = $ApiVersion } $requestPath = Join-Path ([System.IO.Path]::GetTempPath()) ("techtoolbox-agent-request-{0}.json" -f ([guid]::NewGuid().ToString('N'))) $request | ConvertTo-Json -Depth 6 | Set-Content -LiteralPath $requestPath -Encoding utf8 $effectiveToolCredential = $null if ($PSBoundParameters.ContainsKey('ToolCredential') -and $null -ne $ToolCredential) { $effectiveToolCredential = $ToolCredential Write-Log -Level Info -Message 'Tech agent credential source: -ToolCredential parameter.' } elseif (-not [string]::IsNullOrWhiteSpace($ToolCredentialVariableName)) { $credentialVarValue = $null $credentialVar = Get-Variable -Name $ToolCredentialVariableName -Scope 1 -ErrorAction SilentlyContinue if ($credentialVar) { $credentialVarValue = $credentialVar.Value } elseif ($null -eq $credentialVarValue) { $credentialVar = Get-Variable -Name $ToolCredentialVariableName -Scope Script -ErrorAction SilentlyContinue if ($credentialVar) { $credentialVarValue = $credentialVar.Value } } if ($null -eq $credentialVarValue) { $credentialVar = Get-Variable -Name $ToolCredentialVariableName -Scope Global -ErrorAction SilentlyContinue if ($credentialVar) { $credentialVarValue = $credentialVar.Value } } if ($credentialVarValue -is [System.Management.Automation.PSCredential]) { $effectiveToolCredential = [System.Management.Automation.PSCredential]$credentialVarValue Write-Log -Level Info -Message ("Tech agent credential source: variable '{0}'." -f $ToolCredentialVariableName) } } if ($null -ne $effectiveToolCredential) { $toolCredentialPath = Join-Path ([System.IO.Path]::GetTempPath()) ("techtoolbox-agent-credential-{0}.clixml" -f ([guid]::NewGuid().ToString('N'))) $effectiveToolCredential | Export-Clixml -LiteralPath $toolCredentialPath -Force } $childPwsh = Join-Path $PSHOME 'pwsh.exe' if (-not (Test-Path -LiteralPath $childPwsh -PathType Leaf)) { $childPwsh = (Get-Process -Id $PID).Path } $childScript = @' $ErrorActionPreference = 'Stop' [Console]::OutputEncoding = [System.Text.UTF8Encoding]::new($false) $request = Get-Content -LiteralPath $env:TT_AGENT_REQUEST_PATH -Raw | ConvertFrom-Json $agentAssemblyPath = [System.IO.Path]::GetFullPath([string]$env:TT_AGENT_ASSEMBLY_PATH) if (-not (Test-Path -LiteralPath $agentAssemblyPath -PathType Leaf)) { throw ("TechToolbox.Agent assembly not found at '{0}'." -f $agentAssemblyPath) } $loadedAgentAssembly = [System.Reflection.Assembly]::LoadFrom($agentAssemblyPath) $agentCoreType = $loadedAgentAssembly.GetType('TechToolbox.Agent.Core.AgentCore', $false) if ($null -eq $agentCoreType) { throw ("Unable to locate type 'TechToolbox.Agent.Core.AgentCore' in assembly '{0}'." -f $agentAssemblyPath) } $runAgentMethod = $agentCoreType.GetMethod( 'RunAgent', [System.Reflection.BindingFlags]::Public -bor [System.Reflection.BindingFlags]::Static, $null, @( [string], [string], [bool], [int], [bool], [string], [bool], [bool], [string], [string], [string], [int], [System.Collections.Generic.IEnumerable[string]], [string], [string], [string], [string], [string], [string], [int], [bool], [string], [string], [string], [string], [string], [string], [string], [string], [string], [bool], [int], [int], [int], [string], [string], [string] ), $null ) if ($null -eq $runAgentMethod) { throw "Unable to locate the legacy RunAgent overload with the expected parameter signature." } $allowedFetchHosts = [string[]]@() if ($null -ne $request.AllowedFetchHosts) { $allowedFetchHosts = @($request.AllowedFetchHosts | ForEach-Object { if ($null -ne $_) { [string]$_ } }) } $result = $runAgentMethod.Invoke($null, @( [string]$request.Prompt, [string]$request.Model, [bool]$request.Verbose, [int]$request.MaxIterations, [bool]$request.ConfirmDestructive, [string]$request.MemoryPath, [bool]$request.AutoRetryOnRecursion, [bool]$request.ReturnMetadata, [string]$request.SignedFilePolicy, [string]$request.DiagnosticTracePath, [string]$request.ExpectedOutputPath, [int]$request.PromptHistoryItems, [string[]]$allowedFetchHosts, [string]$request.SearchWebProvider, [string]$request.SearchWebEndpoint, [string]$request.SearchWebApiKeyEnvVar, [string]$request.SearchWebCountry, [string]$request.SearchWebLanguage, [string]$request.SearchWebSafeSearch, [int]$request.SearchWebDefaultCount, [bool]$request.AllowMetaTools, [string]$request.LlmProvider, [string]$request.LlmEndpoint, [string]$request.LlmDeployment, [string]$request.LlmApiVersion, [string]$request.ExecutionMode, [string]$request.OutputContract, [string]$request.QualityProfile, [string]$request.ThinkingMode, [string]$request.ReasoningEffort, [bool]$request.ReasoningEffortAuto, [int]$request.PromptPreflightScore, [int]$request.PromptPreflightWarningCount, [int]$request.PromptPreflightCriticalCount, [string]$request.RuntimeProfile, [string]$request.RuntimeProfilesJson, [string]$request.ResiliencePolicyJson )) [Console]::Write($result) '@ $encodedChildScript = [Convert]::ToBase64String([System.Text.Encoding]::Unicode.GetBytes($childScript)) $startInfo = [System.Diagnostics.ProcessStartInfo]::new() $startInfo.FileName = $childPwsh $startInfo.UseShellExecute = $false $startInfo.CreateNoWindow = $true $startInfo.RedirectStandardOutput = $true $startInfo.RedirectStandardError = $true $startInfo.StandardOutputEncoding = [System.Text.UTF8Encoding]::new($false) $startInfo.StandardErrorEncoding = [System.Text.UTF8Encoding]::new($false) $startInfo.Environment['TT_AGENT_ASSEMBLY_PATH'] = $agentAssemblyPath $startInfo.Environment['TT_AGENT_REQUEST_PATH'] = $requestPath $startInfo.Environment['TT_AGENT_LLM_TEMPERATURE'] = [string]$qualitySettings.Temperature $startInfo.Environment['TT_AGENT_LLM_TOP_P'] = [string]$qualitySettings.TopP $startInfo.Environment['TT_AGENT_LLM_REPEAT_PENALTY'] = [string]$qualitySettings.RepeatPenalty if (-not [string]::IsNullOrWhiteSpace($resolvedApiKey)) { $startInfo.Environment['TT_AGENT_LLM_API_KEY'] = $resolvedApiKey } if (-not [string]::IsNullOrWhiteSpace($resolvedSearchWebApiKey)) { $startInfo.Environment[$searchWebApiKeyEnvVar] = $resolvedSearchWebApiKey } if (-not [string]::IsNullOrWhiteSpace($toolCredentialPath)) { $startInfo.Environment['TT_AGENT_DEFAULT_CREDENTIAL_CLIXML'] = $toolCredentialPath } [void]$startInfo.ArgumentList.Add('-NoProfile') [void]$startInfo.ArgumentList.Add('-NonInteractive') [void]$startInfo.ArgumentList.Add('-EncodedCommand') [void]$startInfo.ArgumentList.Add($encodedChildScript) try { $agentProc = [System.Diagnostics.Process]::new() $agentProc.StartInfo = $startInfo if (-not $agentProc.Start()) { throw 'Failed to start child PowerShell process for TechToolbox.Agent.' } # Initialize agent state tracking $agentState = @{ currentIteration = 0 totalIterations = 0 foundValidDecision = $false lastResponseLength = 0 lastStoppedEarly = $false consecutiveLlmFailures = 0 lastToolName = '' processExited = $false exitCode = -1 } # Capture stdout/stderr asynchronously without event callbacks. # This is robust across hosts and still allows internal status polling. $stdoutTask = $agentProc.StandardOutput.ReadToEndAsync() $stderrTask = $agentProc.StandardError.ReadToEndAsync() # Define the poll script that drives the internal terminal-state loop. $pollScript = { if ($agentProc.HasExited) { $agentState['processExited'] = $true $agentState['exitCode'] = $agentProc.ExitCode return $agentState } return $agentState } # Define terminal states $terminalStates = @{ 'AGENT_COMPLETED' = @{ Level = 'Ok' Message = 'Tech agent completed successfully.' Return = $true } 'AGENT_FAILED' = @{ Level = 'Error' Message = { param($obj, $status) "Tech agent failed with exit code {0}." -f $obj['exitCode'] } Return = $true } } # Use internal wait loop first; if it fails, fall back to simple process wait. $internalWaitSucceeded = $false try { $waitResult = Wait-TTInternalTerminalState ` -Target 'TechToolbox.Agent' ` -PollScript $pollScript ` -GetStatus { param($state) Get-TTAgentStatusFromState -State $state } ` -TerminalStates $terminalStates ` -TimeoutSeconds $waitTimeoutSeconds ` -PollSeconds 1 ` -TickMs 125 ` -HeartbeatSeconds 0 $internalWaitSucceeded = $true } catch { Write-Log -Level Warn -Message ("Internal terminal-state wait failed; falling back to basic status mode: {0}" -f $_.Exception.Message) } if (-not $internalWaitSucceeded) { # Fallback: simple blocking read without animation Write-Log -Level E-Info -Message "`nAgent is running...`n" try { while ($true) { if ($agentProc.HasExited) { break } Start-Sleep -Milliseconds 100 } } catch { Write-Log -Level Warn -Message ("Error reading agent stdout: {0}" -f $_.Exception.Message) } if (-not $agentProc.WaitForExit($waitTimeoutSeconds * 1000)) { try { $agentProc.Kill() } catch { } throw ("Tech agent timed out after {0} seconds." -f $waitTimeoutSeconds) } } # Ensure process completion before awaiting output tasks. try { if (-not $agentProc.HasExited) { $agentProc.WaitForExit() } } catch { Write-Log -Level Warn -Message ("Error waiting for agent completion: {0}" -f $_.Exception.Message) } $capturedStdOut = if ($stdoutTask) { [string]$stdoutTask.GetAwaiter().GetResult() } else { '' } $stdoutLines = [System.Collections.Generic.List[string]]::new() if (-not [string]::IsNullOrWhiteSpace($capturedStdOut)) { $rawStdoutLines = $capturedStdOut -split "`r?`n" foreach ($line in $rawStdoutLines) { if ($line -ne $null) { $stdoutLines.Add($line) Update-TTAgentTraceStateFromLine -TraceLine $line -AgentState $agentState } } } $capturedStdErr = if ($stderrTask) { [string]$stderrTask.GetAwaiter().GetResult() } else { '' } # Final check of exit code if ($agentProc.ExitCode -ne 0) { $errorText = if ([string]::IsNullOrWhiteSpace($capturedStdErr)) { $capturedStdOut } else { $capturedStdErr } throw ("Tech agent exited with code {0}: {1}" -f $agentProc.ExitCode, $errorText.Trim()) } $message = $capturedStdOut } catch { throw ("Tech agent failed: {0}" -f $_.Exception.Message) } $message = ([string]$message).Trim() $capturedStdOut = $message $markdownResponseLength = $message.Length if ([string]::IsNullOrWhiteSpace($message)) { $message = 'Tech agent completed successfully with no output.' $markdownResponseLength = $message.Length } $postflightAssessment = Test-TTAgentPostflightGoal -PromptText $Prompt -ResponseText $message -PreflightScore $preflightScore $markdownPostflightAchieved = [bool]$postflightAssessment.Achieved $markdownPostflightReason = if ([string]::IsNullOrWhiteSpace($postflightAssessment.Reason)) { '' } else { [string]$postflightAssessment.Reason } if (-not $StrictPromptPreflight.IsPresent -and -not $postflightAssessment.Achieved) { foreach ($warning in @($preflight.Warnings)) { Write-Warning ("`nInvoke-TechAgent postflight: {0}" -f $warning) } foreach ($criticalMessage in @($preflight.Critical)) { Write-Warning ("`nInvoke-TechAgent postflight critical: {0}" -f $criticalMessage) } if (-not [string]::IsNullOrWhiteSpace($postflightAssessment.Reason)) { Write-Warning ("`nInvoke-TechAgent postflight: {0}" -f $postflightAssessment.Reason) } if ($markdownStatus -eq 'NotStarted') { $markdownStatus = 'SuccessWithWarnings' } } # Surface orchestrator-level failures as real failures so markdown status # and caller behavior do not report false positives. $knownFailurePrefixes = @( 'Agent returned invalid JSON twice.', 'LLM request repeatedly failed', 'Iteration limit reached.' ) $knownFailureDetected = $false foreach ($failurePrefix in $knownFailurePrefixes) { if ($message.StartsWith($failurePrefix, [System.StringComparison]::OrdinalIgnoreCase)) { $knownFailureDetected = $true break } } $markdownKnownFailureDetected = $knownFailureDetected $expectedOutputExists = $false if (-not [string]::IsNullOrWhiteSpace($expectedOutputPath)) { $expectedOutputExists = Test-Path -LiteralPath $expectedOutputPath -PathType Leaf if (-not $expectedOutputExists) { throw ("Tech agent failed: expected output file was not created: {0}" -f $expectedOutputPath) } } $markdownExpectedOutputExists = $expectedOutputExists if ($knownFailureDetected) { if ($expectedOutputExists) { $markdownRecoveryReason = ( "Recovered known orchestrator failure text because expected output file exists at '{0}'. Message: {1}" -f $expectedOutputPath, $message ) Write-Log -Level Warn -Message ( "Tech agent reported orchestrator failure text, but expected output file exists. Treating run as recovered success. Message: {0}" -f $message ) $markdownStatus = 'SuccessRecovered' } else { throw ("Tech agent failed: {0}" -f $message) } } if ($markdownStatus -ne 'SuccessRecovered' -and $markdownStatus -ne 'SuccessWithWarnings') { $markdownStatus = 'Success' } return $message } catch { $markdownStatus = 'Error' $markdownError = $_.Exception.Message Write-Log -Level Error -Message ("Invoke-TechAgent failed: {0}" -f $_.Exception.Message) throw } finally { if (-not [string]::IsNullOrWhiteSpace($markdownPath)) { try { $exitCode = if ($markdownStatus -like 'Success*') { 0 } else { -1 } Write-TTAgentMarkdownLog ` -Path $markdownPath ` -Status $markdownStatus ` -PromptText $Prompt ` -ModelName $resolvedModel ` -IterationLimit $MaxIterations ` -DestructiveAuthorized $ConfirmDestructive.IsPresent ` -SignedFilePolicyValue $SignedFilePolicy ` -AutoRetryOnRecursionMode $( if ($AutoRetryOnRecursion.IsPresent) { 'Enabled' } elseif ($DisableAutoRetryOnRecursion.IsPresent) { 'Disabled' } else { 'Default' } ) ` -ExecutionMode $resolvedExecutionMode ` -OutputContract $resolvedOutputContract ` -QualityProfile $resolvedQualityProfile ` -PromptSource $promptSourceLabel ` -PreflightScore $preflightScore ` -PreflightWarnings @($preflight.Warnings) ` -PreflightCritical @($preflight.Critical) ` -ExpectedOutputPath $expectedOutputPath ` -StdOut $capturedStdOut ` -StdErr $capturedStdErr ` -ErrorText $markdownError ` -RecoveryReason $markdownRecoveryReason ` -PostflightAchieved $markdownPostflightAchieved ` -PostflightReason $markdownPostflightReason ` -ResponseLength $markdownResponseLength ` -KnownFailureDetected $markdownKnownFailureDetected ` -ExpectedOutputExists $markdownExpectedOutputExists ` -ExitCode $exitCode ` -TranscriptFile $transcriptPath ` -StartedUtc $runStartedUtc ` -CompletedUtc ([DateTime]::UtcNow) } catch { Write-Log -Level Warn -Message ("Tech agent markdown log could not be written: {0}" -f $_.Exception.Message) } } if ($transcriptStarted) { try { Stop-Transcript | Out-Null } catch { } } if (-not [string]::IsNullOrWhiteSpace($requestPath) -and (Test-Path -LiteralPath $requestPath -PathType Leaf)) { try { Remove-Item -LiteralPath $requestPath -Force } catch { } } if (-not [string]::IsNullOrWhiteSpace($toolCredentialPath) -and (Test-Path -LiteralPath $toolCredentialPath -PathType Leaf)) { try { Remove-Item -LiteralPath $toolCredentialPath -Force } catch { } } if ($agentProc) { try { $agentProc.Dispose() } catch { } } } } # 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