01 — DEFINE
Start with the why.
Shape the brief with /spec and turn it into verifiable steps with /plan.
UNDERSTAND
DSH PLUGIN / PTC-POWERED MODE
Addy Agent.
A new mode
for DSH.
Addy Agent is a DeepSeek Harness (DSH) plugin. It adds an agent mode built on Programmatic Tool Calling (PTC) and Addy Osmani's Agent Skills, bringing structured workflows and specialist coordination into DSH. Duplicate Guard puts existing code discovery and reuse into that workflow.
Source-first project · Repository access and releases managed on GitHub
MODE / ADDY AGENT
DSH · PTC
$ addy /ship
PARALLEL SPECIALISTS3 THREADS
├─ code-reviewer review
├─ security-auditor audit
└─ test-engineer coverage
One final decision.Evidence → synthesis → GO / NO-GO
↗WORKFLOW ILLUSTRATION — NOT A RUNTIME SCREENSHOT
09/original commands
25/original skills
03/parallel ship specialists
One DSH agent mode
DUPLICATE GUARDDISCOVER BEFORE YOU ADD
Search first.
Reuse first.
Before adding a new production function, look for code that already does the job. Duplicate Guard brings that discovery into Addy Agent mode so the next step can be reuse or extension.
Checks follow the active preset's documented enforcement limits. Duplicate Guard is not a guarantee that every duplicate will be detected.
- Search the repositoryFind existing implementations relevant to the planned change.
- Reuse or extendBuild on an existing implementation when it fits.
- Add with contextUse the discovery results to decide whether new code is needed.
THE IDEA / 01PROCESS OVER PROMPT CHAOS
A process you
can follow.
Install the plugin, select Addy Agent mode in a DSH session, and work with Addy Osmani's Agent Skills through native PTC coordination. Specify the work, build in small steps, and verify changes before a ship decision.
02 — MAKE
Build with intention.
Use /build for bounded implementation and /test for a disciplined verification loop.
IMPLEMENT
03 — DECIDE
Ship with context.
Combine /review and /ship with independent specialist perspectives and a rollback plan.
VERIFY
THE TOOLS / 02ORIGINAL COMMAND INTERFACES
Nine commands.
No mystery.
Call the workflow explicitly or describe what you need. The compatibility layer routes to the original Addy command definitions, keeping the workflow instructions intact.
WORKFLOW / 09 ORIGINAL SOURCE
/ship
Decide with three independent eyes.
Run code, security and test coverage reviews concurrently. The main agent combines the reports into one evidence-based GO / NO-GO decision with a rollback plan.
IN DSH
/shipThree specialist reports. One responsible decision.
Original commands remain pinned to their upstream definitions. Exact command semantics and setup requirements are documented in the project source.
UNDER THE HOOD / 03BUILT TO RESPECT THE SOURCE
The original playbook.
A native home.
The plugin adds an agent mode inside DSH. PTC coordinates tools and specialist agents; Addy Osmani's pinned Agent Skills provide the workflow instructions. Duplicate Guard adds repository discovery and reuse checks.
Pinned to the source
Original command and skill content is preserved, with manifest-backed integrity checking against a pinned upstream revision.
DSH-native coordination
Native Programmatic Tool Calling brings commands, tools and specialist agents together without a second orchestration loop.
Parallel where it counts
For non-trivial ship reviews, independent code, security and test specialists run concurrently before parent synthesis.
Duplicate Guard
Search first. Reuse first. Before adding a new production function, check the repository for an existing implementation to reuse or extend. Duplicate Guard makes that discovery part of the workflow, within the active preset’s documented enforcement limits.
This is an integration of Addy Osmani’s Agent Skills for the DSH ecosystem. It is not the upstream project or an official Addy/DSH release.
BY PIXELCRAFTS COLess guessing.
Explore the project Less guessing.
More making.
Install the plugin, select Addy Agent mode in DSH, and put PTC, Agent Skills and Duplicate Guard to work in your repository.