N-Jet VS Code Extension

AI coding agent sidebar for VS Code — connects to the N-Jet backend with repository awareness, self-validation, and streaming responses.

v0.3.0 moves N-Jet from "AI chat with code awareness" toward a coding agent that verifies its own work.

Features

Activity bar N-Jet icon with sidebar webview (React)
Auto-connect on startup when a token is stored in SecretStorage
Status bar indicator: Connecting, Connected, Reconnecting, Authentication failed, Offline
Progressive diagnostics: Connecting → Checking server → Validating account → Connected as user@email.com
N-Jet: Login opens browser sign-in at https://www.n-jetai.com/njet/vscode-connect (no token paste required)
Browser handoff uses your existing n-jetai.com Supabase session and returns vscode://n-jetcoder.njet/auth?token=...
Token fallback: N-Jet: Login with API Token (only when browser sign-in is unavailable)
Workspace header: project name, git branch, workspace path, indexed file count
Repository intelligence: framework, language, package manager, build system, database detection
Persistent local index + cross-session workspace memory for symbol lookups
Incremental re-index on file save; N-Jet: Reindex Repository command
Multi-file planning for large feature requests before streaming a response
Self-validation loop: after edits, runs npm run build, lint, typecheck, and test (when present); auto-fixes failures up to 3 retries
Diff preview: side-by-side old/new diffs via vscode.diff; Accept all / Reject / Accept selected files
Agent confidence: Low / Medium / High score before applying edits (context coverage + validation history)
Symbol graph: import/export, API routes, and database model edges for cross-file reasoning
Context efficiency: caps symbols, file excerpts, and graph neighbors to keep prompts small
Error-aware coding: parses build/lint/type errors and streams fixes without asking for pasted logs
Agent file editing: parses njet-edit blocks and applies workspace changes with confirmation
Preview integration: N-Jet: Open Preview + detected Vite/Next/Node dev URLs in context
Model modes: Fast / Balanced / Deep (composer selector + njet.modelMode setting)
Session restore across extension reloads (chat history + account)
Health check (GET /api/v1/health) and auth validation (GET /api/v1/me)
Auto-reconnect on network loss, backend restart, and extension reload
Debug logging: [NJET_EXTENSION_*], [NJET_INDEX], [NJET_VALIDATE], [NJET_EDIT], [NJET_PLAN]
Secure token storage via VS Code SecretStorage
N-Jet: Login command for API token entry
Streaming chat via POST /api/v1/chat (SSE)

Settings

Setting	Default	Description
`njet.apiBaseUrl`	`https://api.n-jetai.com`	API origin (without `/api/v1`)
`njet.apiToken`	—	Use N-Jet: Login instead (SecretStorage)
`njet.projectId`	`general`	Project ID sent with chat requests

Development

cd extensions/njet
npm install
npm install --prefix webview
npm run build

Press F5 in VS Code with the extensions/njet folder open (or add a launch config) to run the Extension Development Host.

Commands

N-Jet: Login — browser sign-in (token fallback: Login with API Token)
N-Jet: Logout — clear stored token
N-Jet: Open Chat — focus the sidebar
N-Jet: Reindex Repository — rebuild index + symbol graph
N-Jet: Run Validation — run build/lint/typecheck/test suite manually
N-Jet: Apply Pending Edits — apply queued agent proposals
N-Jet: Open Preview — open detected dev preview URL

Agent workflow (v0.3.0)

User request → repository index + symbol graph + compact context injected
Multi-file plan streamed with assistant response
njet-edit blocks parsed → diff preview with confidence badge
User accepts (all or selected files) → edits applied
Validation suite runs → failures summarized → auto-fix stream (max 3 retries)
Success or final failure surfaced in sidebar + Output channel

N-Jet