dsh-deep-ptc-mode

简体中文

Deep PTC mode (「深度PTC模式」) is a custom agent preset for DeepSeek Harness. It keeps the built-in PTC preset's surface exactly — the same programmatic run_code tooling, the same tool list, sub-agent wiring, plan mode and compaction — and replaces only the persona with a working contract for three habits the 1017 model tends to fall into under PTC.

What changes compared with the built-in PTC preset

Habit	What Deep PTC mode does
Head down and silent, one big hand-off at the end	One or two sentences before every run_code say what is about to be checked, changed or verified. At real milestones — first pass of inspection, plan fixed, a batch of edits done, tests run, direction changed — the update is a little longer. If two or three tool calls go by without a word, the agent stops and reports where it is.
Skimping on tools and verification to save tokens	Tool calls are the work, not a cost: no skipping a read, a search, a command or a check to save tokens. Related calls are batched into one run_code program, verification is matched to the task, and scope is not expanded beyond the user's success criteria.
Guessing when the request is ambiguous	Ask first. For real ambiguity, a user-owned tradeoff, or intent that would otherwise be guessed, it asks 1–3 concrete questions with options through ask_user_question, recommended option first, and gives a question-only program a generous timeoutMs (for example 600000) so the wait is not cut off by the default timeout.

Two boundaries keep it from over-correcting: a clear single-step request needs no confirmation, and the agent never asks about operations the user has already authorized; plan mode's own question rules still take precedence over this contract.

Install

Requires DSH >= 0.2.1-rc.3 — see Compatibility.

From GitHub (recommended). In the desktop app open Plugins → Install plugin and paste:

github:lishize20040802-rgb/dsh-deep-ptc-mode

Or from an agent session that has the plugin_manager tool:

plugin_manager({ action: "install_bundle", target: "github:lishize20040802-rgb/dsh-deep-ptc-mode" })

From a local checkout (development):

plugin_manager({ action: "install_bundle", target: "C:\\path\\to\\dsh-deep-ptc-mode" })

After installation, newly created tasks show 深度PTC模式 in the mode picker's Custom group, and it can be set as the default mode for new tasks. Sessions that were already running keep the preset they were created with. Installing the same bundle again updates it.

Compatibility

package.json declares:

"engines": { "dsh": ">=0.2.1-rc.3" }

This is a floor, not an exact pin. DSH checks plugin requirements as SemVer ranges with prereleases included, so 0.2.1-rc.4, 0.2.1, 0.2.2-rc.1, 0.3.0 and every later release satisfy the range, while older runtimes such as 0.2.1-rc.2 or 0.2.0 are refused before anything is installed. An exact pin ("0.2.1-rc.3") would reject every future release, including that version's own patch and release-candidate builds.

Files

• cordis.patch.yml — one @deepseek-ai/dsh-agent-preset declaration: config.id deep-ptc, display name 「深度PTC模式」, order: 5, and the child-plugin list copied from the built-in PTC preset.
• package.json — the bundle manifest: dsh.bundle.patch points at the patch above, and engines.dsh is the compatibility floor.

Design notes

• The behavior contract lives in dsh-persona's suffix (system-prompt order 10200, after first-party guidance) rather than prefix, so it is the constraint closest to the moment the model answers; the prefix keeps only the identity line.
• No extra plugin injects mechanical progress notes. The 1017 model's problem is expression, not capability; a prompt contract plus PTC's batched call rhythm is enough, and it avoids additional runtime cost.
• The deployment-level system-prompt is untouched, so only sessions that select this preset are affected.

Uninstall

Use plugin_manager remove_bundle with the bundle package name dsh-deep-ptc-mode. Deleting this directory does not immediately affect an already-installed copy, but updates and re-installs will fail — handle them in order.

License

MIT — see LICENSE.