Back language model tools and the Command Explorer with new LSP requests#2298
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andyleejordan wants to merge 4 commits into
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Back language model tools and the Command Explorer with new LSP requests#2298andyleejordan wants to merge 4 commits into
andyleejordan wants to merge 4 commits into
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Convert `powerShell/showHelp` from a fire-and-forget notification into a
request that returns `ShowHelpResult { HelpText }`, so the client can render
help in a read-only editor pane (and the language model `get_help` tool can
reuse the same path) instead of printing into the integrated console.
The handler captures `Get-Help -Full | Out-String` and `.Trim()`s both ends —
`Out-String` pads the output with a leading and trailing blank line, which
looked wrong in the help pane and in tool output.
Drafted by Copilot (Claude Opus 4.8).
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
The handler previously serialized the entire command table (names, modules, and full parameter metadata) on every request, which is slow enough to hang the `get_command` language model tool and made the Command Explorer take minutes to populate. Extend `GetCommandParams` so callers can ask for only what they need: - `Name`/`Module` (both wildcard-capable) scope the `Get-Command` call so we don't materialize everything; an unmatched filter writes a non-terminating error, so we pass `-ErrorAction Ignore` and return an empty list instead. - `ExcludeParameters` takes a fast path that returns just name, module, and the new `ModuleVersion` without touching `Parameters`/`ParameterSets`, whose resolution and serialization dominate the cost. - Editor-injected commands are always skipped: the PSES host's fake `PSConsoleHostReadLine` (version 0.0.0) and VS Code's shell-integration helpers (`__VSCode-Escape-Value`, `Set-MappedKeyHandler[s]`) are plumbing, not commands a user authored or imported. - `ExcludeDefaultFunctions` (opt-in) drops PowerShell's module-less default-session functions (`cd..`, `prompt`, `TabExpansion2`, ...) and the install's `pwsh.profile.resource` script. The names come from `InitialSessionState.CreateDefault2()` so the list stays correct across PowerShell versions; module-provided commands are never affected. Drafted by Copilot (Claude Opus 4.8). Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Pull request overview
This PR adds server-side LSP request support needed by upcoming VS Code extension features (language model tools, redesigned Command Explorer, and a read-only Show Help pane), aligning PowerShellEditorServices with new client capabilities in the companion VS Code PR.
Changes:
- Converts
powerShell/showHelpfrom a notification into a request that returns full help text as a string. - Enhances
powerShell/getCommandwith optional name/module filtering, a fast path to exclude parameter metadata, and filtering for editor-injected/default-session commands. - Adds a new
powerShell/getModulerequest handler plus Copilot build/test instructions documentation.
Reviewed changes
Copilot reviewed 5 out of 5 changed files in this pull request and generated 4 comments.
Show a summary per file
| File | Description |
|---|---|
| src/PowerShellEditorServices/Services/PowerShell/Handlers/ShowHelpHandler.cs | Switches showHelp to a request and returns trimmed help text from Get-Help -Full | Out-String. |
| src/PowerShellEditorServices/Services/PowerShell/Handlers/GetModuleHandler.cs | Adds a new LSP request to retrieve module metadata for Command Explorer tooltips. |
| src/PowerShellEditorServices/Services/PowerShell/Handlers/GetCommandHandler.cs | Adds filtering/fast-path options and excludes editor-injected/default-session commands. |
| src/PowerShellEditorServices/Server/PsesLanguageServer.cs | Registers the new GetModuleHandler with the language server. |
| .github/copilot-instructions.md | Documents local build/test workflows and repo architecture/conventions for Copilot. |
💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.
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andyleejordan
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| [System.Diagnostics.DebuggerHidden()] | ||
| [CmdletBinding()] | ||
| param ( | ||
| [String]$Name, | ||
| [String]$Version | ||
| ) | ||
| $modules = Microsoft.PowerShell.Core\Get-Module -ListAvailable -Name $Name -ErrorAction Ignore | ||
| if ($Version) { | ||
| $modules = $modules | Microsoft.PowerShell.Core\Where-Object { $_.Version.ToString() -eq $Version } | ||
| } | ||
| $module = $modules | Microsoft.PowerShell.Utility\Sort-Object Version -Descending | Microsoft.PowerShell.Utility\Select-Object -First 1 | ||
| if ($null -eq $module) { | ||
| return | ||
| } | ||
| [PSCustomObject]@{ | ||
| Name = $module.Name | ||
| Version = $module.Version.ToString() | ||
| Description = $module.Description | ||
| Path = $module.Path | ||
| Author = $module.Author | ||
| CompanyName = $module.CompanyName | ||
| ProjectUri = if ($module.ProjectUri) { $module.ProjectUri.ToString() } else { '' } | ||
| PowerShellVersion = if ($module.PowerShellVersion) { $module.PowerShellVersion.ToString() } else { '' } | ||
| } | ||
| "; |
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@SeeminglyScience main thing I'd like your eye on.
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| $helpUri = [Microsoft.PowerShell.Commands.GetHelpCodeMethods]::GetHelpUri($command) | ||
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| $oldSslVersion = [System.Net.ServicePointManager]::SecurityProtocol | ||
| [System.Net.ServicePointManager]::SecurityProtocol = [System.Net.SecurityProtocolType]::Tls12 | ||
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| # HEAD means we don't need the content itself back, just the response header | ||
| $status = (Microsoft.PowerShell.Utility\Invoke-WebRequest -Method Head -Uri $helpUri -TimeoutSec 5 -ErrorAction Stop).StatusCode | ||
| if ($status -lt 400) { | ||
| $null = Microsoft.PowerShell.Core\Get-Help $CommandName -Online | ||
| return | ||
| } | ||
| } catch { | ||
| # Ignore - we want to drop out to Get-Help -Full | ||
| } finally { | ||
| [System.Net.ServicePointManager]::SecurityProtocol = $oldSslVersion | ||
| } | ||
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| return Microsoft.PowerShell.Core\Get-Help $CommandName -Full |
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@SeeminglyScience and the removal of the "look up online" bit that I don't think ever worked well for us
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The Command Explorer groups commands under versioned module nodes and shows a tooltip on hover. Add a `getModule` request that returns a single module's metadata (version, description, path, author, company, project URI, required PowerShell version) so the client can populate those tooltips lazily, and register the handler in `PsesLanguageServer`. Drafted by Copilot (Claude Opus 4.8). Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Capture how to build and test the project with `dotnet` directly (faster, no extra modules) versus `Invoke-Build` (needed for assembling the full module and the complete CI suite), so future Copilot sessions don't have to rediscover it. Drafted by Copilot (Claude Opus 4.8). Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Server-side support for new VS Code extension features (language model tools, a redesigned Command Explorer, and a read-only Show Help pane). The client work lives in PowerShell/vscode-powershell#5508 and depends on this PR; the two should be reviewed and merged together.
powerShell/showHelprequest — convertshowHelpfrom a notification to a request returningShowHelpResult { HelpText }, capturingGet-Help -Full | Out-Stringand trimming both ends (it pads a leading and trailing blank line).get_commandfor tools and the Command Explorer — optionalName/Modulefilters (wildcard,-ErrorAction Ignore), anExcludeParametersfast path plusModuleVersion, unconditional exclusion of editor-injected commands (the fakePSConsoleHostReadLine0.0.0 and VS Code shell-integration helpers), and opt-inExcludeDefaultFunctionsenumerated fromInitialSessionState.CreateDefault2().powerShell/getModulehandler — returns a single module's metadata for the Command Explorer's hover tooltips. Covered by E2E tests verifying metadata is returned for an existing module and a null result for a missing module.Drafted by Copilot (Claude Opus 4.8) — please review/edit before marking ready.