LSP not working for TypeScript in pi

[tenshiak]

Short description

aft_inspect doesn't detect language servers even thoug they are auto-installed

What happened?

aft_inspect doesn't use/detect LSPs, even though auto_install is enabled. Shows diagnostics: 0 errors, 0 warnings, 0 info, 0 hints (incomplete — servers: not installed: biome, typescript). Running npx @cortexkit/aft@latest doctor lsp [file] detects them, but always finds 0 issues for typescript even if I add errors to the file on purpose. If I install biome myself with npx install -g @biomejs/biome, it then detects it in aft_inspect, but returns the status as pending, still returning 0 errors or warnings. Manually invoking biome check [file] works fine after I install it.

With python and ty as LSP server it works fine and returns the finds errors.

Diagnostics

## Environment
- AFT CLI: v0.46.0
- AFT binary: 0.46.0
- OS: linux x64
- Node: v24.18.0

## Diagnostics
- Timestamp: 2026-07-09T09:25:21.768Z
- AFT CLI: v0.46.0
- AFT binary: 0.46.0
- OS: linux x64
- Node: v24.18.0

### Pi
- Host installed: true
- Host version: 0.80.3
- Plugin registered: true
- Plugin version: not installed
- AFT enabled: true (from ~/.config/cortexkit/aft.jsonc)
- AFT config parse error: none

#### Config paths

{
  "configDir": "~/.pi/agent",
  "harnessConfig": "~/.pi/agent/settings.json",
  "harnessConfigFormat": "json",
  "aftConfig": "~/.config/cortexkit/aft.jsonc",
  "aftConfigFormat": "jsonc"
}


#### AFT flags

{
  "$schema": "https://raw.githubusercontent.com/cortexkit/aft/main/assets/aft.schema.json",
  "enabled": true,
  "hoist_builtin_tools": true,
  "format_on_edit": true,
  "validate_on_edit": "syntax",
  "formatter": {
    "typescript": "biome",
    "python": "ruff",
    "rust": "rustfmt"
  },
  "checker": {
    "typescript": "biome"
  },
  "configure_warnings_delivery": "toast",
  "tool_surface": "all",
  "search_index": true,
  "semantic_search": true,
  "semantic": {
    "backend": "fastembed",
    "model": "all-MiniLM-L6-v2",
    "timeout_ms": 25000,
    "max_batch_size": 64,
    "max_files": 20000
  },
  "restrict_to_project_root": false,
  "auto_update": false,
  "lsp": {
    "auto_install": true,
    "servers": {},
    "python": "ty"
  },
  "bash": {
    "rewrite": false,
    "compress": false,
    "background": false,
    "subagent_background": false,
    "foreground_wait_window_ms": 8000
  },
  "inspect": {
    "enabled": true,
    "tier2_idle_minutes": 5
  },
  "backup": {
    "enabled": true
  }
}


#### Plugin cache

{
  "path": "~/.pi/agent/extensions",
  "exists": false
}


#### Storage

{
  "path": "~/.local/share/cortexkit/aft",
  "exists": true,
  "accessible": true,
  "sizesByKey": {
    "index": 8608342,
    "semantic": 187663296,
    "backups": 0,
    "url_cache": 0,
    "onnxruntime": 66492548
  }
}


#### ONNX Runtime

{
  "required": true,
  "systemPath": null,
  "systemVersion": null,
  "systemCompatible": null,
  "cachedPath": "~/.local/share/cortexkit/aft/onnxruntime/1.24.4",
  "cachedVersion": "1.24.4",
  "cachedCompatible": true,
  "platform": "linux-x64",
  "installHint": "AFT auto-downloads ONNX Runtime on supported Linux (glibc)",
  "requirement": ">=1.20"
}


#### Log file
`/tmp/aft-pi.log` (9 KB)

### Binary cache

{
  "versions": [
    "v0.46.0"
  ],
  "activeVersion": "v0.46.0",
  "totalSize": 75291360,
  "path": "~/.cache/aft/bin"
}


### LSP cache

{
  "npm": {
    "path": "~/.cache/aft/lsp-packages",
    "entries": [
      {
        "name": "@biomejs/biome",
        "path": "~/.cache/aft/lsp-packages/%40biomejs%2Fbiome",
        "size": 64360727
      },
      {
        "name": "yaml-language-server",
        "path": "~/.cache/aft/lsp-packages/yaml-language-server",
        "size": 19686976
      },
      {
        "name": "pyright",
        "path": "~/.cache/aft/lsp-packages/pyright",
        "size": 19286295
      },
      {
        "name": "typescript-language-server",
        "path": "~/.cache/aft/lsp-packages/typescript-language-server",
        "size": 3226474
      },
      {
        "name": "dockerfile-language-server-<USER>js",
        "path": "~/.cache/aft/lsp-packages/dockerfile-language-server-<USER>js",
        "size": 2464588
      }
    ],
    "totalSize": 109025060
  },
  "github": {
    "path": "~/.cache/aft/lsp-binaries",
    "entries": [],
    "totalSize": 0
  },
  "totalSize": 109025060
}


## Recent errors (last 20, sanitized)
_No error-shaped log lines found in recent history._

### Recent AFT tool failures
No recent AFT tool failures recorded.

## Logs (last 200 lines per harness)
#### Pi log (/tmp/aft-pi.log)


[2026-07-09T09:15:48.231Z] WARN [aft-pi] Config validation error in ~/.config/cortexkit/aft.jsonc: : Unrecognized keys: "hoist_builtin_tools", "auto_update"
[2026-07-09T09:15:48.242Z] WARN [aft-pi] Config validation error in ~/.config/cortexkit/aft.jsonc: : Unrecognized keys: "hoist_builtin_tools", "auto_update"
[2026-07-09T09:15:48.243Z] INFO [aft-pi] AFT extension loading (plugin v0.46.0)
[2026-07-09T09:15:48.250Z] INFO [aft-pi] Resolved binary: ~/.cache/aft/bin/v0.46.0/aft
[2026-07-09T09:15:48.253Z] INFO [aft-pi] AFT storage migration skipped for pi: no legacy data at ~/.pi/agent/aft; using ~/.local/share/cortexkit/aft for fresh install
[2026-07-09T09:15:48.448Z] INFO [aft-pi] ONNX Runtime found at ~/.local/share/cortexkit/aft/onnxruntime/1.24.4 (TOFU verified)
[2026-07-09T09:15:48.927Z] INFO [aft-pi] [lsp] auto-install: 5 npm + 0 github install(s) running in background
[2026-07-09T09:15:48.937Z] INFO [aft-pi] Workflow hints injected (3364 chars)
[2026-07-09T09:15:48.938Z] INFO [aft-pi] AFT extension ready (surface=all)
[2026-07-09T09:15:48.938Z] INFO [aft-pi] ONNX Runtime ready at ~/.local/share/cortexkit/aft/onnxruntime/1.24.4; new bridges will load semantic backend.
[2026-07-09T09:15:48.939Z] INFO [aft-pi] Spawning binary: ~/.cache/aft/bin/v0.46.0/aft (cwd: <PROJECT>)
[2026-07-09T09:15:48.939Z] INFO [aft-pi] bridge.spawnProcess: useFastembedBackend=true, parentORT=(unset), ortLibraryPath=~/.local/share/cortexkit/aft/onnxruntime/1.24.4/libonnxruntime.so
[2026-07-09T09:15:48.939Z] INFO [aft-pi] ORT_DYLIB_PATH set from managed ONNX Runtime: ~/.local/share/cortexkit/aft/onnxruntime/1.24.4/libonnxruntime.so
[2026-07-09T09:15:57.050Z] INFO [aft-pi] [aft] started, pid 25
[2026-07-09T09:15:57.050Z] INFO [aft-pi] [aft] project root set: <PROJECT>
[2026-07-09T09:15:57.050Z] INFO [aft-pi] [aft] reclaiming cross-host filesystem lock at ~/.local/share/cortexkit/aft/index/ceb11238169701bf/cache.lock from host c9abf0ce3d91 after stale heartbeat (969515ms > 75000ms)
[2026-07-09T09:15:57.050Z] INFO [aft-pi] [aft] loaded 1 backup entries across 1 session(s) from disk
[2026-07-09T09:15:57.050Z] INFO [aft-pi] [aft] acquired filesystem lock at ~/.local/share/cortexkit/aft/index/ceb11238169701bf/cache.lock
[2026-07-09T09:15:57.050Z] INFO [aft-pi] [aft] gitignore matcher built: 32 pattern(s)
[2026-07-09T09:15:57.050Z] INFO [aft-pi] [aft] callgraph store warm deferred until semantic cold seed gate clears or completes
[2026-07-09T09:15:57.050Z] INFO [aft-pi] [aft] local embedder ready: model=all-MiniLM-L6-v2 intra_threads=8 token_type_ids=<REDACTED_SECRET>
[2026-07-09T09:15:57.050Z] INFO [aft-pi] [aft] acquired filesystem lock at ~/.local/share/cortexkit/aft/semantic/ceb11238169701bf/cache.lock
[2026-07-09T09:15:57.050Z] INFO [aft-pi] [aft] search index: refreshed 1 stale file(s) from disk cache
[2026-07-09T09:15:57.050Z] INFO [aft-pi] [aft] released filesystem lock at ~/.local/share/cortexkit/aft/index/ceb11238169701bf/cache.lock
[2026-07-09T09:15:57.050Z] INFO [aft-pi] [aft] loaded symbol cache from disk: 100 files
[2026-07-09T09:15:57.050Z] INFO [aft-pi] [aft] acquired filesystem lock at ~/.local/share/cortexkit/aft/symbols/ceb11238169701bf/symbols.lock
[2026-07-09T09:15:57.050Z] INFO [aft-pi] [aft] released filesystem lock at ~/.local/share/cortexkit/aft/symbols/ceb11238169701bf/symbols.lock
[2026-07-09T09:15:57.050Z] INFO [aft-pi] [aft] persisted symbol cache: 100 files
[2026-07-09T09:15:57.050Z] INFO [aft-pi] [aft] pre-warmed symbol cache: 0 new, 100 cached, 100 files total
[2026-07-09T09:15:57.050Z] INFO [aft-pi] [aft] loaded semantic index from disk: 567 entries
[2026-07-09T09:15:57.050Z] INFO [aft-pi] [aft] semantic index: cached index is current (567 entries)
[2026-07-09T09:15:57.050Z] INFO [aft-pi] [aft] released filesystem lock at ~/.local/share/cortexkit/aft/semantic/ceb11238169701bf/cache.lock
[2026-07-09T09:15:57.050Z] INFO [aft-pi] [aft] tier2 refresh scheduled: reason=pull, categories=["dead_code", "unused_exports", "duplicates", "cycles"]
[2026-07-09T09:15:57.085Z] WARN [aft-pi] [configure] deferred warnings for <PROJECT> arrived without session_id; buffering until first session-bound call
[2026-07-09T09:15:57.372Z] INFO [aft-pi] [lsp] installing dockerfile-language-server-<USER>js@0.15.0 to ~/.cache/aft/lsp-packages/dockerfile-language-server-<USER>js
[2026-07-09T09:15:57.602Z] INFO [aft-pi] [lsp] installing @biomejs/biome@2.5.2 to ~/.cache/aft/lsp-packages/%40biomejs%2Fbiome
[2026-07-09T09:15:57.673Z] INFO [aft-pi] Binary version: 0.46.0
[2026-07-09T09:15:57.743Z] INFO [aft-pi] [lsp] installing pyright@1.1.411 to ~/.cache/aft/lsp-packages/pyright
[2026-07-09T09:15:57.787Z] INFO [aft-pi] [lsp] installing typescript-language-server@5.3.0 to ~/.cache/aft/lsp-packages/typescript-language-server
[2026-07-09T09:15:58.097Z] INFO [aft-pi] [lsp] installing yaml-language-server@1.23.0 to ~/.cache/aft/lsp-packages/yaml-language-server
[2026-07-09T09:15:58.482Z] INFO [aft-pi] [lsp] installed typescript-language-server@5.3.0
[2026-07-09T09:15:58.489Z] INFO [aft-pi] [lsp] typescript-language-server@5.3.0 installed sha256=86ef128358dcd71d0c684d786d7751ee09fbbbbb2a521482b160007b8228be2e
[2026-07-09T09:15:58.975Z] INFO [aft-pi] [lsp] installed dockerfile-language-server-<USER>js@0.15.0
[2026-07-09T09:15:58.976Z] INFO [aft-pi] [lsp] dockerfile-language-server-<USER>js@0.15.0 installed sha256=42d531bef66e4883287de032adae2cb892541fc17b1de0e6eb002c4803862b96
[2026-07-09T09:15:59.874Z] INFO [aft-pi] [lsp] installed @biomejs/biome@2.5.2
[2026-07-09T09:15:59.875Z] INFO [aft-pi] [lsp] @biomejs/biome@2.5.2 installed sha256=7ffb4d217e5ddefcc19ca6afe76bb982f5eb36c9a124448105195fbcfc84bd77
[2026-07-09T09:16:01.214Z] INFO [aft-pi] [lsp] installed yaml-language-server@1.23.0
[2026-07-09T09:16:01.216Z] INFO [aft-pi] [lsp] yaml-language-server@1.23.0 installed sha256=93e9cff3dee44232379f0bccb98dd96d042a4472fe648ac9d4f85633e32c7e8d
[2026-07-09T09:16:07.175Z] INFO [aft-pi] [lsp] installed pyright@1.1.411
[2026-07-09T09:16:07.176Z] INFO [aft-pi] [lsp] pyright@1.1.411 installed sha256=f200762078eb9880faf421a5b30f9ef3055b1d85c6f10780d75db4da8d8499f1
[2026-07-09T09:16:24.429Z] INFO [aft-pi] [aft-lsp] [ses_019f4629-5f66-76a3-8e91-b1e069a5ea59] failed to spawn TypeScript Language Server: not found: language server binary 'typescript-language-server' not found in <USER>_modules/.bin, lsp_paths_extra, or PATH
[2026-07-09T09:16:24.445Z] INFO [aft-pi] [aft-lsp] [ses_019f4629-5f66-76a3-8e91-b1e069a5ea59] failed to spawn Biome: not found: language server binary 'biome' not found in <USER>_modules/.bin, lsp_paths_extra, or PATH
[2026-07-09T09:16:28.701Z] INFO [aft-pi] [aft] perf tier2_callgraph_snapshot: source=callgraph_store files=100 exports=205 edges=3615 entry_points=3 ms=1478
[2026-07-09T09:17:35.126Z] INFO [aft-pi] [aft] watcher started: <PROJECT>
[2026-07-09T09:17:35.622Z] INFO [aft-pi] [aft] [ses_019f4629-5f66-76a3-8e91-b1e069a5ea59] invalidated 2 files
[2026-07-09T09:17:38.644Z] INFO [aft-pi] [aft] [ses_019f4629-5f66-76a3-8e91-b1e069a5ea59] invalidated 1 files
[2026-07-09T09:17:39.646Z] INFO [aft-pi] [aft] [ses_019f4629-5f66-76a3-8e91-b1e069a5ea59] invalidated 1 files
[2026-07-09T09:17:40.148Z] INFO [aft-pi] [aft] [ses_019f4629-5f66-76a3-8e91-b1e069a5ea59] invalidated 1 files
[2026-07-09T09:18:24.346Z] INFO [aft-pi] [aft] perf tier2 phases category=cycles freshness=177ms snapshot=0ms scan=0ms(0 files) db=0ms rollup=0ms
[2026-07-09T09:18:24.346Z] INFO [aft-pi] [aft] perf tier2 category=cycles reuse=miss ms=1530
[2026-07-09T09:18:24.777Z] INFO [aft-pi] [aft] perf tier2 phases category=dead_code freshness=171ms snapshot=0ms scan=0ms(0 files) db=0ms rollup=0ms
[2026-07-09T09:18:24.777Z] INFO [aft-pi] [aft] perf tier2 category=dead_code reuse=miss ms=1962
[2026-07-09T09:18:24.796Z] INFO [aft-pi] [aft] perf tier2 phases category=unused_exports freshness=179ms snapshot=0ms scan=0ms(0 files) db=0ms rollup=0ms
[2026-07-09T09:18:24.796Z] INFO [aft-pi] [aft] perf tier2 category=unused_exports reuse=miss ms=1981
[2026-07-09T09:18:25.166Z] INFO [aft-pi] [aft] perf tier2 phases category=duplicates freshness=1479ms snapshot=0ms scan=0ms(0 files) db=0ms rollup=0ms
[2026-07-09T09:18:25.166Z] INFO [aft-pi] [aft] perf tier2 category=duplicates reuse=miss ms=2294
[2026-07-09T09:18:26.491Z] INFO [aft-pi] [aft] perf tier2_callgraph_snapshot: source=callgraph_store files=100 exports=205 edges=3615 entry_points=3 ms=1473
[2026-07-09T09:19:04.103Z] INFO [aft-pi] [aft] [ses_019f4629-5f66-76a3-8e91-b1e069a5ea59] invalidated 1 files
[2026-07-09T09:19:44.147Z] INFO [aft-pi] [aft] [ses_019f4629-5f66-76a3-8e91-b1e069a5ea59] invalidated 1 files
[2026-07-09T09:20:07.419Z] INFO [aft-pi] [aft] [ses_019f4629-5f66-76a3-8e91-b1e069a5ea59] invalidated 1 files
[2026-07-09T09:20:55.202Z] INFO [aft-pi] [aft] [ses_019f4629-5f66-76a3-8e91-b1e069a5ea59] tier2 refresh scheduled: reason=debounce, categories=["dead_code", "unused_exports", "duplicates", "cycles"]


_Usernames and home paths have been stripped from this report._

Plugin version

No response

AFT binary version

No response

Platform

No response

Log output (optional)

[tenshiak]

The user name is "node", that's why it appears redacted. Additional diagnostics when I install biome myself. aft_inspect returns with diagnostics: 0 errors, 0 warnings, 0 info, 0 hints so far — still pending (servers: pending: typescript). Re-running the same aft_inspect after a while returned the correct diagnostics from biome. It doesn't make sense to return pending diagnostics. It should wait until it's done before returning.

Additional findings:

ls /home/node/.cache/aft/lsp-packages
%40biomejs%2Fbiome  dockerfile-language-server-nodejs  pyright  typescript-language-server  yaml-language-server

That weird biome name may be the culprit of why it doesn't detect biome. When i ls my own modules it looks like this

ls
@biomejs  @earendil-works  bash-language-server  playwright  pnpm  typescript  typescript-language-server  vscode-langservers-extracted  yaml-language-server

Still doesn't explain why it doesn't detect typescript.

[alfonso-aft]

Thanks for the detailed report — the diagnostics bundle made this easy to trace.

Confirmed from your log: this is a fresh-install race. The plugin computes the LSP search path from already-cached installs at startup, kicks off the auto-installs in the background, and starts the engine immediately — so on a first install, the servers finish installing 10-20 seconds later but the running engine never learns about them. That's why aft_inspect said "not installed" while doctor lsp (a fresh process) found them. A fix is in progress: install completion will now update live sessions, no restart needed.

We're also investigating the second thing you saw (typescript-language-server spawning but reporting 0 diagnostics even with deliberate errors) — likely related to typescript itself not being resolvable from the project, but we'll confirm the mechanism before claiming that. The Unrecognized keys warnings in your log are noise from the shared config file being validated by both harnesses; that gets cleaned up too.

Workaround until the fix ships: restart Pi once after the first install completes (later starts find the cached servers), and make sure your project has a biome.json/tsconfig.json at the root you're inspecting.