feat(plugins): add dual-client LSP plugins for Copilot CLI and Claude Code by SebastienDegodez · Pull Request #37 · SebastienDegodez/copilot-instructions

SebastienDegodez · 2026-11-06T22:26:59Z

Summary

Adds 10 LSP plugins that give the agent IDE-grade code intelligence (go-to-definition, references, rename, hover, diagnostics). Each plugin works with both GitHub Copilot CLI and Claude Code.

Plugin	Language server	Files
`python-lsp`	Pyright	`.py` `.pyi` `.pyw`
`java-lsp`	Eclipse JDT.LS	`.java`
`csharp-lsp`	Roslyn Language Server (Microsoft, `roslyn-language-server`)	`.cs`
`typescript-lsp`	TypeScript 7 native (`tsc --lsp --stdio`)	`.ts` `.tsx` `.mts` `.cts` `.js` `.jsx` `.mjs` `.cjs`
`dockerfile-lsp`	Docker Language Server	`.dockerfile` `.containerfile`
`json-lsp`	VS Code JSON Language Server	`.json` `.jsonc`
`yaml-lsp`	Red Hat YAML Language Server	`.yaml` `.yml`
`markdown-lsp`	Marksman	`.md` `.markdown`
`gherkin-lsp`	Cucumber Language Server	`.feature`
`bash-lsp`	Bash Language Server	`.sh` `.bash`

Plugin layout

plugins/<lang>-lsp/
├── plugin.json                  # Agent Plugins 1.0 manifest (Copilot CLI)
├── .claude-plugin/plugin.json   # Claude Code manifest
├── .lsp.json                    # Claude Code LSP config (extensionToLanguage)
├── com.github.copilot/lsp.json  # Copilot CLI LSP config (lspServers / fileExtensions)
├── plugin.yaml                  # Website catalog
└── README.md                    # French documentation

In Agent Plugins mode, Copilot CLI reads LSP servers from com.github.copilot/lsp.json. Claude Code reads .lsp.json at the plugin root. The two configs describe the same server, but the clients use different field names.

Other changes

.github/plugin/marketplace.json: 10 new entries (Copilot CLI marketplace)
.claude-plugin/marketplace.json: new Claude Code marketplace
tests/plugins/<lang>-lsp/scenarios.yaml: evaluator scenarios
README.md: new "LSP Plugins" section

Notes

TypeScript: npm i -g typescript now installs TypeScript 7, which no longer ships tsserver.js, so typescript-language-server can't start with it. The plugin uses the built-in TS 7 server (tsc --lsp --stdio) instead. The README explains the fallback for projects on TS 6 or earlier.
Dockerfile: both clients pick a server by file extension, so a plain Dockerfile with no extension isn't matched. This limitation is documented.
C#: uses the official Microsoft roslyn-language-server .NET tool (prerelease only on NuGet) with --stdio --autoLoadProjects. --autoLoadProjects is required: neither client sends the VS Code solution/open notification, and without the flag cross-file go-to-definition times out (verified). csharp-ls is documented as an alternative.
Java: startup timeout raised to 120 s (startupTimeout for Claude Code, initializationTimeoutMs for Copilot CLI).

Validation

copilot plugin install <name>@copilot-instructions-sebastien-degodez + copilot lsp list: all 10 servers loaded from the plugins
claude plugin validate: passed for all 10 plugins and the Claude marketplace
Root plugin.json files validated against the Agent Plugins 1.0 JSON Schema
LSP initialize handshake run against each real server using the plugin's own config: all 10 respond (definition/references/rename/hover capabilities)
Scenario files validated with the evaluator's Zod schema; website build succeeds and renders the 10 plugin pages

… Code Add 10 LSP plugins (python, java, csharp, typescript/javascript, dockerfile, json, yaml, markdown, gherkin, bash) following the Agent Plugins 1.0 layout: - plugin.json (Agent Plugins) + com.github.copilot/lsp.json for Copilot CLI - .claude-plugin/plugin.json + .lsp.json for Claude Code - <plugin>-setup skill with check.sh to verify the server install - French README per plugin, plugin.yaml, evaluator scenarios - Copilot marketplace entries and new .claude-plugin/marketplace.json Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

The LSP plugins now ship configuration only. Installation and verification steps remain documented in each plugin README. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Replace csharp-ls with roslyn-language-server (--stdio --autoLoadProjects). --autoLoadProjects is required because Copilot CLI and Claude Code do not send the solution/open notification; without it cross-file navigation fails. csharp-ls is documented as an alternative. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

github-actions · 2026-11-06T22:57:14Z

🤖 Evaluation Results

✅ All evaluations passed — 0/0 assets passed (18 skipped due to API errors — not counted)

Asset	Kind	Score	Pass Rate	Status
`bash-lsp`	plugin	N/A	N/A	⚠️ SKIPPED
`csharp-clean-architecture-development`	plugin	N/A	N/A	⚠️ SKIPPED
`csharp-lsp`	plugin	N/A	N/A	⚠️ SKIPPED
`dockerfile-lsp`	plugin	N/A	N/A	⚠️ SKIPPED
`gherkin-lsp`	plugin	N/A	N/A	⚠️ SKIPPED
`java-lsp`	plugin	N/A	N/A	⚠️ SKIPPED
`json-lsp`	plugin	N/A	N/A	⚠️ SKIPPED
`markdown-lsp`	plugin	N/A	N/A	⚠️ SKIPPED
`minimal-context-tools`	plugin	N/A	N/A	⚠️ SKIPPED
`python-lsp`	plugin	N/A	N/A	⚠️ SKIPPED
`superpowers-whetstone`	plugin	N/A	N/A	⚠️ SKIPPED
`typescript-lsp`	plugin	N/A	N/A	⚠️ SKIPPED
`yaml-lsp`	plugin	N/A	N/A	⚠️ SKIPPED
`creating-dotnet-mcp-servers`	skill	N/A	N/A	⚠️ SKIPPED
`generate-microcks-openapi-samples`	skill	N/A	N/A	⚠️ SKIPPED
`migrating-prompts-to-skills`	skill	N/A	N/A	⚠️ SKIPPED
`setup-husky-dotnet`	skill	N/A	N/A	⚠️ SKIPPED
`skill-creator`	skill	N/A	N/A	⚠️ SKIPPED

Scenario Details

bash-lsp (plugin) — ⚠️ SKIPPED

csharp-clean-architecture-development (plugin) — ⚠️ SKIPPED

csharp-lsp (plugin) — ⚠️ SKIPPED

dockerfile-lsp (plugin) — ⚠️ SKIPPED

gherkin-lsp (plugin) — ⚠️ SKIPPED

java-lsp (plugin) — ⚠️ SKIPPED

json-lsp (plugin) — ⚠️ SKIPPED

markdown-lsp (plugin) — ⚠️ SKIPPED

minimal-context-tools (plugin) — ⚠️ SKIPPED

python-lsp (plugin) — ⚠️ SKIPPED

superpowers-whetstone (plugin) — ⚠️ SKIPPED

typescript-lsp (plugin) — ⚠️ SKIPPED

yaml-lsp (plugin) — ⚠️ SKIPPED

creating-dotnet-mcp-servers (skill) — ⚠️ SKIPPED

generate-microcks-openapi-samples (skill) — ⚠️ SKIPPED

migrating-prompts-to-skills (skill) — ⚠️ SKIPPED

setup-husky-dotnet (skill) — ⚠️ SKIPPED

skill-creator (skill) — ⚠️ SKIPPED

Tokens used: 0 input, 0 output
View workflow run

github-actions · 2026-11-06T23:27:23Z

🤖 Evaluation Results

✅ All evaluations passed — 0/0 assets passed (18 skipped due to API errors — not counted)

Asset	Kind	Score	Pass Rate	Status
`bash-lsp`	plugin	N/A	N/A	⚠️ SKIPPED
`csharp-clean-architecture-development`	plugin	N/A	N/A	⚠️ SKIPPED
`csharp-lsp`	plugin	N/A	N/A	⚠️ SKIPPED
`dockerfile-lsp`	plugin	N/A	N/A	⚠️ SKIPPED
`gherkin-lsp`	plugin	N/A	N/A	⚠️ SKIPPED
`java-lsp`	plugin	N/A	N/A	⚠️ SKIPPED
`json-lsp`	plugin	N/A	N/A	⚠️ SKIPPED
`markdown-lsp`	plugin	N/A	N/A	⚠️ SKIPPED
`minimal-context-tools`	plugin	N/A	N/A	⚠️ SKIPPED
`python-lsp`	plugin	N/A	N/A	⚠️ SKIPPED
`superpowers-whetstone`	plugin	N/A	N/A	⚠️ SKIPPED
`typescript-lsp`	plugin	N/A	N/A	⚠️ SKIPPED
`yaml-lsp`	plugin	N/A	N/A	⚠️ SKIPPED
`creating-dotnet-mcp-servers`	skill	N/A	N/A	⚠️ SKIPPED
`generate-microcks-openapi-samples`	skill	N/A	N/A	⚠️ SKIPPED
`migrating-prompts-to-skills`	skill	N/A	N/A	⚠️ SKIPPED
`setup-husky-dotnet`	skill	N/A	N/A	⚠️ SKIPPED
`skill-creator`	skill	N/A	N/A	⚠️ SKIPPED

Scenario Details

bash-lsp (plugin) — ⚠️ SKIPPED

csharp-clean-architecture-development (plugin) — ⚠️ SKIPPED

csharp-lsp (plugin) — ⚠️ SKIPPED

dockerfile-lsp (plugin) — ⚠️ SKIPPED

gherkin-lsp (plugin) — ⚠️ SKIPPED

java-lsp (plugin) — ⚠️ SKIPPED

json-lsp (plugin) — ⚠️ SKIPPED

markdown-lsp (plugin) — ⚠️ SKIPPED

minimal-context-tools (plugin) — ⚠️ SKIPPED

python-lsp (plugin) — ⚠️ SKIPPED

superpowers-whetstone (plugin) — ⚠️ SKIPPED

typescript-lsp (plugin) — ⚠️ SKIPPED

yaml-lsp (plugin) — ⚠️ SKIPPED

creating-dotnet-mcp-servers (skill) — ⚠️ SKIPPED

generate-microcks-openapi-samples (skill) — ⚠️ SKIPPED

migrating-prompts-to-skills (skill) — ⚠️ SKIPPED

setup-husky-dotnet (skill) — ⚠️ SKIPPED

skill-creator (skill) — ⚠️ SKIPPED

Tokens used: 0 input, 0 output
View workflow run

SebastienDegodez and others added 3 commits November 6, 2026 23:25

refactor(plugins): remove setup skills from LSP plugins

531ae17

The LSP plugins now ship configuration only. Installation and verification steps remain documented in each plugin README. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

SebastienDegodez merged commit fa2d13a into main Nov 6, 2026

SebastienDegodez deleted the feat/lsp-plugins branch November 6, 2026 22:35

Navigation Menu

Repository navigation

feat(plugins): add dual-client LSP plugins for Copilot CLI and Claude Code - #37

feat(plugins): add dual-client LSP plugins for Copilot CLI and Claude Code#37
SebastienDegodez merged 3 commits into
mainfrom
feat/lsp-plugins

SebastienDegodez commented Nov 6, 2026 •

edited

Loading

Uh oh!

github-actions Bot commented Nov 6, 2026

Uh oh!

github-actions Bot commented Nov 6, 2026

Uh oh!

Reviewers

Uh oh!

Assignees

Labels

Projects

Milestone

Development

Uh oh!

1 participant

Conversation

SebastienDegodez commented Nov 6, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Summary

Plugin layout

Other changes

Notes

Validation

Uh oh!

github-actions Bot commented Nov 6, 2026

🤖 Evaluation Results

Scenario Details

Uh oh!

github-actions Bot commented Nov 6, 2026

🤖 Evaluation Results

Scenario Details

Uh oh!

Reviewers

Uh oh!

Assignees

Labels

Projects

Milestone

Development

Uh oh!

1 participant

SebastienDegodez commented Nov 6, 2026 •

edited

Loading