feat(lsp): add PowerShellEditorServices language server - #55930
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Registers PowerShell (.ps1/.psm1/.psd1) in the LSP server registry, spawning PowerShellEditorServices over stdio via a pwsh/powershell host. PSES ships as a GitHub release zip (no npm/go/pip recipe), so it sits in the manual install tier alongside rust-analyzer and clangd. The spawn builder resolves the module bundle from (in order) the lsp.servers.powershell.command override, init bundlePath, the PSES_BUNDLE_PATH env var, or <HERMES_HOME>/lsp/PowerShellEditorServices, then launches Start-EditorServices.ps1 -Stdio with a non-interactive, no-profile host. hermes lsp status/list report it as manual-only until pwsh is present. Docs and tests included.
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dtera
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Jul 1, 2026
…#55930) Registers PowerShell (.ps1/.psm1/.psd1) in the LSP server registry, spawning PowerShellEditorServices over stdio via a pwsh/powershell host. PSES ships as a GitHub release zip (no npm/go/pip recipe), so it sits in the manual install tier alongside rust-analyzer and clangd. The spawn builder resolves the module bundle from (in order) the lsp.servers.powershell.command override, init bundlePath, the PSES_BUNDLE_PATH env var, or <HERMES_HOME>/lsp/PowerShellEditorServices, then launches Start-EditorServices.ps1 -Stdio with a non-interactive, no-profile host. hermes lsp status/list report it as manual-only until pwsh is present. Docs and tests included.
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waefrebeorn
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Jul 2, 2026
…#55930) Registers PowerShell (.ps1/.psm1/.psd1) in the LSP server registry, spawning PowerShellEditorServices over stdio via a pwsh/powershell host. PSES ships as a GitHub release zip (no npm/go/pip recipe), so it sits in the manual install tier alongside rust-analyzer and clangd. The spawn builder resolves the module bundle from (in order) the lsp.servers.powershell.command override, init bundlePath, the PSES_BUNDLE_PATH env var, or <HERMES_HOME>/lsp/PowerShellEditorServices, then launches Start-EditorServices.ps1 -Stdio with a non-interactive, no-profile host. hermes lsp status/list report it as manual-only until pwsh is present. Docs and tests included.
Jasper6439
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Jul 5, 2026
…#55930) Registers PowerShell (.ps1/.psm1/.psd1) in the LSP server registry, spawning PowerShellEditorServices over stdio via a pwsh/powershell host. PSES ships as a GitHub release zip (no npm/go/pip recipe), so it sits in the manual install tier alongside rust-analyzer and clangd. The spawn builder resolves the module bundle from (in order) the lsp.servers.powershell.command override, init bundlePath, the PSES_BUNDLE_PATH env var, or <HERMES_HOME>/lsp/PowerShellEditorServices, then launches Start-EditorServices.ps1 -Stdio with a non-interactive, no-profile host. hermes lsp status/list report it as manual-only until pwsh is present. Docs and tests included.
habarmc1223-sudo
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Jul 8, 2026
…#55930) Registers PowerShell (.ps1/.psm1/.psd1) in the LSP server registry, spawning PowerShellEditorServices over stdio via a pwsh/powershell host. PSES ships as a GitHub release zip (no npm/go/pip recipe), so it sits in the manual install tier alongside rust-analyzer and clangd. The spawn builder resolves the module bundle from (in order) the lsp.servers.powershell.command override, init bundlePath, the PSES_BUNDLE_PATH env var, or <HERMES_HOME>/lsp/PowerShellEditorServices, then launches Start-EditorServices.ps1 -Stdio with a non-interactive, no-profile host. hermes lsp status/list report it as manual-only until pwsh is present. Docs and tests included.
santhreal
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Jul 13, 2026
…#55930) Registers PowerShell (.ps1/.psm1/.psd1) in the LSP server registry, spawning PowerShellEditorServices over stdio via a pwsh/powershell host. PSES ships as a GitHub release zip (no npm/go/pip recipe), so it sits in the manual install tier alongside rust-analyzer and clangd. The spawn builder resolves the module bundle from (in order) the lsp.servers.powershell.command override, init bundlePath, the PSES_BUNDLE_PATH env var, or <HERMES_HOME>/lsp/PowerShellEditorServices, then launches Start-EditorServices.ps1 -Stdio with a non-interactive, no-profile host. hermes lsp status/list report it as manual-only until pwsh is present. Docs and tests included.
Gravezzz
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Jul 21, 2026
…#55930) Registers PowerShell (.ps1/.psm1/.psd1) in the LSP server registry, spawning PowerShellEditorServices over stdio via a pwsh/powershell host. PSES ships as a GitHub release zip (no npm/go/pip recipe), so it sits in the manual install tier alongside rust-analyzer and clangd. The spawn builder resolves the module bundle from (in order) the lsp.servers.powershell.command override, init bundlePath, the PSES_BUNDLE_PATH env var, or <HERMES_HOME>/lsp/PowerShellEditorServices, then launches Start-EditorServices.ps1 -Stdio with a non-interactive, no-profile host. hermes lsp status/list report it as manual-only until pwsh is present. Docs and tests included.
leewenjie
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Aug 7, 2026
…#55930) Registers PowerShell (.ps1/.psm1/.psd1) in the LSP server registry, spawning PowerShellEditorServices over stdio via a pwsh/powershell host. PSES ships as a GitHub release zip (no npm/go/pip recipe), so it sits in the manual install tier alongside rust-analyzer and clangd. The spawn builder resolves the module bundle from (in order) the lsp.servers.powershell.command override, init bundlePath, the PSES_BUNDLE_PATH env var, or <HERMES_HOME>/lsp/PowerShellEditorServices, then launches Start-EditorServices.ps1 -Stdio with a non-interactive, no-profile host. hermes lsp status/list report it as manual-only until pwsh is present. Docs and tests included.
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Summary
Hermes now provides semantic diagnostics for PowerShell files (
.ps1/.psm1/.psd1) by wiring PowerShellEditorServices into the LSP server registry.PSES is not a single PATH binary — it's a PowerShell module bundle launched by a
pwsh/powershellhost viaStart-EditorServices.ps1. It ships as a GitHub release zip (no npm/go/pip recipe), so it sits in the manual install tier alongsiderust-analyzerandclangd.Changes
agent/lsp/servers.py: register thepowershellserver — extensions,powershelllanguage IDs, a root resolver (PSScriptAnalyzer settings → git workspace), a bundle-locator, and a stdio spawn builder that launchespwsh -NoProfile -NonInteractive ... Start-EditorServices.ps1 -Stdio.agent/lsp/install.py: manual-tier recipe sohermes lsp status/listreport it (probes thepwshhost).website/docs/user-guide/features/lsp.md: supported-servers row + a PowerShell setup section.tests/agent/lsp/test_powershell_server.py: 8 tests (routing, language IDs, skip-without-pwsh, skip-without-bundle, command construction, override precedence,bundlePathnot leaked into init options).Bundle resolution order:
lsp.servers.powershell.commandoverride → initbundlePath→PSES_BUNDLE_PATHenv →<HERMES_HOME>/lsp/PowerShellEditorServices.Validation
.ps1/.psm1/.psd1route topowershell, spawn command built correctly,lsp status→installedoncepwshfoundInfographic
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