dsh-codex-subscription

What it solves

• You already pay for ChatGPT Plus / Pro and want to reuse that subscription inside DeepSeek Harness instead of buying and maintaining a separate OpenAI API key.
• It collapses “subscription sign-in → pick model → set effort → check quota” into DSH itself, so you do not need the Codex CLI installed or a second tool in the loop.
• It keeps chat, web search, image generation/editing, and sketching (hand-drawn or agent-drawn with @sketch) in one workflow.

Who it’s for

• Users with a ChatGPT Plus / Pro account that currently has Codex access.
• Developers who live in DSH (web, CLI, or the official desktop app) and want models, quota, image generation and sketching managed in one place.
• Power users who need multi-account switching, quota-threshold alerts, isolated subtasks and cloud context compaction.

Highlights

Models and search

• Subscription sign-in: log in with your ChatGPT account, no API key required.
• Model catalog sync: reads the models and reasoning tiers available to your account, with manual refresh; models come only from the account catalog — nothing is shown when logged out.
• Switch model, reasoning effort, speed tier (Standard / Fast / Ultrafast Beta), answer verbosity and input image detail directly from the composer.
• Web search routing (Auto / DSH / Codex), live or cached search, search off, or domain-restricted search.
• Configurable stream-inactivity timeout (10 minutes by default) and context budget (standard / extended / custom).

Accounts and quota

• Add, switch, remove accounts or sign out of all of them.
• Short-window and weekly quota, reset times, separate quota groups, plus credits, spend limits and reset cards when the server returns them.
• In-composer quota display (percentage or progress bar), threshold reminders, runtime estimate (Beta), manual reset-card use and retry-after-reset.

Images and sketching

• Image generation and reference-image editing (Beta, on by default), including transparent-background PNG output.
• Built-in viewer: zoom, pan, fit-to-window and download the verified original; region annotation feeds back into a follow-up edit.
• Sketch canvas (Beta, off by default): aspect-ratio presets, pen/pencil/highlighter/eraser, shapes and text, layers with image import, stroke smoothing, undo/redo, up to 20 local drafts, PNG export and draft-file round-trip.
• Agent drawing: ask the agent to draw with @sketch; it can produce whole drawings as SVG and import them as editable native strokes.

Advanced and maintenance

• Codex isolated subtasks (Beta) and subtask component management.
• Cloud context compaction and WebSocket transport (both experimental, off / SSE by default).
• Auto review via the Codex review model (Beta, off by default).
• Support diagnostics (a ~1 KB trimmed report that excludes credentials and conversation content) and quota-prediction cache cleanup.

Installation

1. Open Plugins → Add plugin in DSH.
2. Enter the versioned package name, e.g. dsh-codex-subscription@2.5.7 (the plugin page only installs versions published at least 24 hours ago; pinning avoids an incompatible older build).
3. Install and restart DSH when prompted.
4. Open Settings → Codex Subscription, sign in to ChatGPT, then pick a Codex model in your session.

CLI alternative: dsh plugin --profile web add dsh-codex-subscription. For headless tasks, sign in and select a Codex model once in the web UI first, then install the same plugin into the headless profile.

Caveats

• Verified against DSH 0.2.0-rc.2 (next) and 0.1.7-rc.2 (latest); it targets the latest DSH recorded in the package metadata.
• Image generation, reference-image editing, the sketch canvas, agent drawing, isolated subtasks and cloud compaction are marked Beta / experimental and are partly off by default.
• Model availability, quota windows and quota groups come from the account’s server response; no models are listed when you are signed out or the catalog read fails.
• The plugin signs into a third-party client with your subscription — confirm this fits your account’s terms of service. Failed subscription requests surface an explicit error instead of silently falling back to another paid route.