DeepSeek Harness plugin

dsh-exec-extension

Official-pattern dsh bundle: replace headless-startup with per-invocation CLI flags without writing settings

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Source facts

Repository
LvDAO/dsh-exec-extension
Latest update
Aug 20, 2026
Category
Tools & Capabilities
GitHub stars
0
Format
plugin
Catalog evidence
Upstream dsh.bundle evidence
Evidence path
package.json#dsh.bundle
Checked against
0.1.0-rc.8
Upstream check date
2026-08-20

This evidence comes from the upstream catalog. This site has not installed, run, or security-reviewed the plugin.

Install

Start with a prompt that asks an agent to review the GitHub repository and source. Switch to the command if you want to install it yourself.

Copy this prompt into DSH, Codex, or another agent and ask it to review the GitHub repository and source first.

Do not install or run any commands yet. Read this plugin's GitHub repository, README, and relevant source code. Then answer the questions below clearly and directly so I can decide whether it fits my needs:

1. What is this plugin, and what problem does it solve?
2. Who is it for, and what are its typical use cases?
3. How is it used after installation? Include one minimal example.
4. What known limitations or privacy, security, compatibility, or maintenance risks does it have?
5. Give a clear recommendation: recommend, conditionally recommend, or do not recommend, with reasons.

Distinguish statements documented by the repository, inferences from source code, and unknowns. If evidence is insufficient, say so explicitly. Do not guess or simply repeat the README.

GitHub: https://github.com/LvDAO/dsh-exec-extension
Plugin: dsh-exec-extension
Author: LvDAO

Check the source files

Read the README and other files from this plugin directory before installing.

File explorer3 files
README.mdSource · read only

dsh-exec-extension

npm · 中文文档

A DeepSeek Harness bundle for one-shot exec, in the same shape as official surface plugins (dsh.bundle.patch + parseCmdline + commander). Stock headless-startup only declares [task...]; this bundle disables that row and inserts a replacement that still provides headlessStartup.task for unmodified headless-runner.

The CLI follows OpenCode run and Pi -p: piped stdin is merged into the prompt, @file / -f attaches files, --format json streams session events, --dir sets cwd, --yolo skips permission prompts (it does not disable the sandbox). Model overlay is in-process (Rust WASM) and never writes $DSH_HOME/settings.yaml.

Install

dsh plugin --profile exec add @deepseek-ai/dsh-headless@$(npm view @deepseek-ai/dsh version)
dsh plugin --profile exec add dsh-exec-extension
dsh --profile exec --help

Follow the same npm latest channel as the dsh CLI (npx @deepseek-ai/dsh / npm install --global @deepseek-ai/dsh). Do not use @next unless you installed dsh@next. @deepseek-ai/dsh-headless has a stale latest tag, so the first line takes the CLI's latest version instead of headless's own. dsh-exec-extension uses its own latest. Freeze with @<version> only when you need a snapshot. npm install does not need a prepare allowlist.

Git fallback: dsh plugin --profile exec add github:LvDAO/dsh-exec-extension

Dedicated profile only. Stock dsh --profile headless --model x "t" must still fail.

CLI

dsh --profile exec [options] [--] [task|-]
cat README.md | dsh --profile exec "summarize this"
dsh --profile exec @notes.md --full-auto "use the notes"

| Flag | Meaning | |------|---------| | -m, --model | This-process model (never part of the task) | | --effort, --reasoning-effort | off\|high\|max | | --thinking | Pi thinking tiers; xhigh/maxmax, minimal/low/medium/highhigh | | --provider | This-process provider | | -C, --cwd / --cd / --dir | Working directory (published on headlessStartup.cwd) | | --timeout <seconds> | appExit(1) after N seconds | | -s, --sandbox / --permission-mode | read-only \| workspace-write \| danger-full-access | | --approval ask\|never\|allow | ask fail-closes without a UI; never auto-denies; allow auto-grants | | --full-auto | workspace-write + auto-allow (CI) | | --yolo / --dangerously-skip-permissions | Skip permission prompts (auto-allow). Does not set danger-full-access; default sandbox stays workspace-write. Unrestricted access is --sandbox danger-full-access | | --tools-mode native\|code\|both | Tools presentation | | -f, --file / @path | Attach file text into the task | | --output-schema <path> | Prompt-level JSON Schema constraint (not constrained decode) | | -o, --output-last-message <path> | Also write the final assistant text | | --format text\|json / --mode json | json is session-event JSONL | | -c, --config key=value | Repeatable this-process overlay | | --env KEY=VALUE / --api-key | Process env only (not written to disk) | | --print-selection | Print overlaid selection JSON and exit |

Unknown flags error. Overlay never calls saveSelection().

--output-schema is a prompt constraint, not constrained decoding. --approval allow and --yolo install a process-local auto-grant because dsh never auto-denies and headless has no UI. --yolo does not set danger-full-access; use --sandbox danger-full-access for unrestricted tools.

headlessStartup is { task, cwd, permissionMode, approvalPolicy, autoApprove, toolsMode?, format }. sandbox-policy, approval, and tools inject that service (!!js ctx.headlessStartup.*). Stock headless-runner still only reads task.

Non-goals

MCP, Host, HTTP, resume, --image, forking headless-runner. Put MCP on the profile patch + process env, not on this CLI.

Develop

Node ≥ 22.19. WASM is committed; prepare skips rustc.

npm test
DSH_BIN=/path/to/dsh npm run acceptance