Specrew

0.38.0-beta1

scripts/internal/specrew-handover-provider.ps1

                                # Specrew ROLLING-handover provider (Feature 174). Thin TRIGGER ADAPTER (iter-9.1): it resolves the project

# root, host, and trigger source, then funnels into the ONE core save path `Update-SpecrewRollingHandover`

# (HandoverStore). It re-implements no save logic. Registered for the per-host END-OF-TURN events (Claude

# `Stop`, Codex `Stop`, Copilot `agentStop`, Cursor `stop`, Antigravity `Stop`) AND `PostToolUse` (so the handover refreshes

# mid-turn during picker-driven phases like the workshop, where no end-of-turn Stop fires). It is ALSO

# invoked directly by the design-workshop skill with `--source workshop`. Portable across hosts + crash-safe

# (the core's material-change gate keeps the per-tool-call PostToolUse cost cheap; the atomic writer keeps

# the file safe). Fail-open: any error -> exit 0.

#

#   --event-json <json>     the host event payload (Stop/agentStop/PostToolUse); source derived from it

#   --host-kind <kind>      the authoritative resolved host (claude|codex|copilot|cursor|antigravity)

#   --source <label>        explicit trigger label (used by the workshop skill: `--source workshop`)

#   --project-root <path>   optional override (testability); else resolve up to .specrew

$ErrorActionPreference = 'Stop'

# SPECREW-UTF8-OUTPUT (F-174 iter-10, Prop-145 P3): declare UTF-8 stdout/stderr so non-ASCII output (e.g. a

# transcript/path WARN under a non-Latin home) is not mangled to '?' by the child pwsh's default OEM console

# codepage when the dispatcher captures it. The dispatcher reads UTF-8 (ProcessStartInfo.StandardOutputEncoding);

# this is the child half of that contract. Fail-open.

try { [Console]::OutputEncoding = [System.Text.UTF8Encoding]::new($false) } catch { $null = $_ }  # best-effort: a host that rejects UTF-8 console encoding must still run (fail-open)

function Get-HandoverProjectRoot {

    $c = (Get-Location).Path

    while (-not [string]::IsNullOrWhiteSpace($c)) {

        if (Test-Path -LiteralPath (Join-Path $c '.specrew') -PathType Container) { return $c }

        $p = Split-Path -Parent $c

        if ($p -eq $c) { break }

        $c = $p

    }

    return (Get-Location).Path

}

function Get-HandoverProp {

    param([AllowNull()]$Object, [string]$Name)

    if ($null -eq $Object) { return $null }

    $p = $Object.PSObject.Properties[$Name]

    if ($p) { return $p.Value }

    return $null

}

try {

    $eventJson = ''

    $rootOverride = $null

    $hostKindArg = $null

    $sourceArg = $null

    $sourceEventArg = $null

    $transcriptPathArg = $null

    $lastAssistantArg = $null

    for ($i = 0; $i -lt $args.Count; $i++) {

        if ($args[$i] -eq '--event-json' -and ($i + 1) -lt $args.Count) { $eventJson = [string]$args[$i + 1] }

        elseif ($args[$i] -eq '--project-root' -and ($i + 1) -lt $args.Count) { $rootOverride = [string]$args[$i + 1] }

        elseif ($args[$i] -eq '--host-kind' -and ($i + 1) -lt $args.Count) { $hostKindArg = [string]$args[$i + 1] }

        elseif ($args[$i] -eq '--source' -and ($i + 1) -lt $args.Count) { $sourceArg = [string]$args[$i + 1] }

        elseif ($args[$i] -eq '--source-event' -and ($i + 1) -lt $args.Count) { $sourceEventArg = [string]$args[$i + 1] }

        elseif ($args[$i] -eq '--transcript-path' -and ($i + 1) -lt $args.Count) { $transcriptPathArg = [string]$args[$i + 1] }

        elseif ($args[$i] -eq '--last-assistant-message' -and ($i + 1) -lt $args.Count) { $lastAssistantArg = [string]$args[$i + 1] }

    }

    $root = if ($rootOverride) { [System.IO.Path]::GetFullPath($rootOverride) } else { Get-HandoverProjectRoot }

    # Component resolution (same as the bootstrap provider, D-001): beside the provider in the source tree;

    # when the self-host dogfood runs the deployed .specify mirror, prefer this project source tree before

    # ambient SPECREW_MODULE_PATH or installed-module fallbacks. Downstream projects normally lack

    # scripts/internal, so they still resolve through the dev-tree override or installed module.

    $bdir = Join-Path $PSScriptRoot 'bootstrap'

    if (-not (Test-Path -LiteralPath $bdir)) {

        $selfHostBdir = Join-Path $root 'scripts/internal/bootstrap'

        $devBdir = if ($env:SPECREW_MODULE_PATH) { Join-Path $env:SPECREW_MODULE_PATH 'scripts/internal/bootstrap' } else { $null }

        if (Test-Path -LiteralPath $selfHostBdir) { $bdir = $selfHostBdir }

        elseif ($devBdir -and (Test-Path -LiteralPath $devBdir)) { $bdir = $devBdir }

        else {

            # F-174 iter-11 (P1): pick the newest installed module that ACTUALLY CONTAINS scripts/internal/bootstrap,

            # not blindly the newest - not every version ships the bootstrap components (0.34.0 did; 0.35.0/0.36.0

            # did not), so "newest" can resolve to a bootstrap-LESS path and the handover then silently writes

            # NOTHING (dot-source throws -> top-level try swallows -> exit 0). Same fail-open; a bootstrap-bearing

            # older module is just no longer skipped. (Mirror of the bootstrap provider's P1 guard.)

            $mod = Get-Module -ListAvailable Specrew | Sort-Object Version -Descending |

                Where-Object { Test-Path -LiteralPath (Join-Path $_.ModuleBase 'scripts/internal/bootstrap') } |

                Select-Object -First 1

            if ($mod) { $bdir = Join-Path $mod.ModuleBase 'scripts/internal/bootstrap' }

        }

    }

    foreach ($f in 'HandoverStore', 'ClassificationEngine', 'ProjectMetadataAccessor', 'ConversationCaptureAccessor') { . (Join-Path $bdir "$f.ps1") }

    # F-174 iteration 011 (T004): load shared-governance so the Stop-hook Update-SpecrewRollingHandover can record

    # the captured human verdict (Add-SpecrewBoundaryAuthorization / Get-SpecrewBoundaryOrder). Same 3-tier

    # resolution the bootstrap provider uses ($bdir -> scripts/internal -> module root -> extensions/.../scripts).

    # FAIL-OPEN: if it cannot be resolved the handover still writes; the verdict-capture step self-guards on

    # Get-Command and simply skips the authorization (the resume then surfaces the boundary as awaiting-verdict).

    try {

        $sgModuleRoot = Split-Path (Split-Path (Split-Path $bdir -Parent))

        $sgPath = Join-Path (Join-Path $sgModuleRoot 'extensions/specrew-speckit/scripts') 'shared-governance.ps1'

        if (Test-Path -LiteralPath $sgPath -PathType Leaf) { . $sgPath }

    }

    catch { $null = $_ }

    # Resolve the trigger source, in precedence order: an explicit --source (the workshop skill passes

    # `workshop`); else --source-event (the dispatcher passes the neutral event name as a CLEAN arg, since

    # the --event-json payload gets mangled through Start-Process -ArgumentList); else parse the event name

    # from --event-json (direct invocations); else 'stop'. Host-agnostic - no per-host adapter.

    $source = if (-not [string]::IsNullOrWhiteSpace($sourceArg)) { $sourceArg }

    elseif (-not [string]::IsNullOrWhiteSpace($sourceEventArg)) { $sourceEventArg }

    else { 'stop' }

    if ([string]::IsNullOrWhiteSpace($sourceArg) -and [string]::IsNullOrWhiteSpace($sourceEventArg) -and -not [string]::IsNullOrWhiteSpace($eventJson)) {

        $payload = $null

        try { $payload = $eventJson | ConvertFrom-Json } catch { $payload = $null }

        if ($null -ne $payload) {

            $s = Get-HandoverProp $payload 'hook_event_name'

            if ([string]::IsNullOrWhiteSpace($s)) { $s = Get-HandoverProp $payload 'source' }

            if (-not [string]::IsNullOrWhiteSpace($s)) { $source = [string]$s }

        }

    }

    # F-174 iter-10 (T002): resolve the conversation transcript handle for capture. Robustness ladder:

    #   1. the CLEAN --transcript-path arg the dispatcher extracts from the INTACT stdin event (the

    #      --event-json arg gets mangled through Start-Process -ArgumentList, so it is not trusted for paths);

    #   2. else parse transcript_path / transcriptPath (+ last_assistant_message) from --event-json itself

    #      (direct/test invocations, where the JSON is intact);

    #   3. else the Cursor CURSOR_TRANSCRIPT_PATH env var (inherited through the process tree).

    $transcriptPath = $transcriptPathArg

    $lastAssistant = $lastAssistantArg

    if (([string]::IsNullOrWhiteSpace($transcriptPath) -or [string]::IsNullOrWhiteSpace($lastAssistant)) -and -not [string]::IsNullOrWhiteSpace($eventJson)) {

        $tp = $null

        try { $tp = $eventJson | ConvertFrom-Json } catch { $tp = $null }

        if ($null -ne $tp) {

            if ([string]::IsNullOrWhiteSpace($transcriptPath)) {

                $t = Get-HandoverProp $tp 'transcript_path'

                if ([string]::IsNullOrWhiteSpace($t)) { $t = Get-HandoverProp $tp 'transcriptPath' }

                if (-not [string]::IsNullOrWhiteSpace($t)) { $transcriptPath = [string]$t }

            }

            if ([string]::IsNullOrWhiteSpace($lastAssistant)) {

                $la = Get-HandoverProp $tp 'last_assistant_message'

                if (-not [string]::IsNullOrWhiteSpace($la)) { $lastAssistant = [string]$la }

            }

        }

    }

    if ([string]::IsNullOrWhiteSpace($transcriptPath) -and -not [string]::IsNullOrWhiteSpace($env:CURSOR_TRANSCRIPT_PATH)) {

        $transcriptPath = [string]$env:CURSOR_TRANSCRIPT_PATH

    }

    # SINGLE save path (F-174 iter-9.1): every trigger - this Stop/PostToolUse hook AND the workshop skill -

    # funnels through the one core orchestrator. Its material-change gate makes the PostToolUse (every

    # tool call) path cheap, and the hollow-journal lives there too.

    Update-SpecrewRollingHandover -ProjectRoot $root -HostKind $hostKindArg -Source $source `

        -TranscriptPath $transcriptPath -LastAssistantMessage $lastAssistant | Out-Null

    exit 0

}

catch {

    [Console]::Error.WriteLine("[specrew-handover] WARN PROVIDER_FAILED $($_.Exception.Message)")

    exit 0

}