[!NOTE] 📦 This plugin lives in the dsh-plugins monorepo — file issues & pull requests there. npm: @hy-sde-org/dsh-tool-subagent-report

dsh-tool-subagent-report — child-scoped reporting for continuable subagents for DeepSeek Harness

A standalone package for DeepSeek Harness, installable as one plugin: report for continuable in-process subagents plus the prompt guidance that tells each child to use it.

package	tool	installed by users?
@hy-sde-org/dsh-tool-subagent-report	report (child-scoped)	yes

This is a standalone port of the DeepSeek Harness fork's @deepseek-ai/dsh-tool-subagent-report onto its published peer dependencies. The package builds and tests against the published @deepseek-ai/* packages; the fork-only subagent report channel (registerContinuableSetup/reportFrom + the keyed open-decisions ledger) is declared as a local type contract and supplied at runtime by a subagent service built from the fork or a standalone port carrying the same channel.

Provenance: conceptually inspired by firstmate (MIT, © 2026 Kun Chen) — its parent-status contract with keyed open decisions. No firstmate code is included.

Why

Without a return channel, a parent learns what a child found by scraping its transcript or parsing its final message — if the child is still parked there at all. This plugin gives every continuable in-process child a real report tool instead: findings, status, summary, evidence, next steps, and blockers travel through a typed channel (registerContinuableSetup / reportFrom) back to the agent that started it, and keyed open decisions (needs-decision / blocked with a decisionKey) land in a ledger the parent can answer rather than being buried in child prose. A tool:report prompt section tells each child to deliver a self-contained answer before finishing, so the parent never has to re-derive context from a raw transcript.

Prerequisites

• Node.js 22.19 or newer with npm and pnpm on PATH;
• DeepSeek Harness 0.2.0-rc.2 or newer — the package's @deepseek-ai/* peer range is ^0.2.0-rc.2 (@deepseek-ai/cordis, dsh-agent, dsh-llm, dsh-subagent, dsh-system-prompt, dsh-tools);
• a subagent service with the fork's report channel: the published @deepseek-ai/dsh-subagent@0.1.2-rc.1 predates registerContinuableSetup/reportFrom, so on a stock published stack the row fails at boot with a missing registerContinuableSetup service method — supply a subagent service built from the DeepSeek Harness fork or a standalone port carrying the same channel. This is the documented contract, not a misconfiguration.

Install the Harness CLI and pnpm before continuing:

npm install --global @deepseek-ai/dsh@0.2.0-rc.2 pnpm
dsh --version

The report tool

Every continuable in-process child gets:

• a child-scoped report tool (output, status, summary, evidence, nextSteps, blocker, decisionKey), installing a return channel to the agent that started it; and
• a tool:report prompt section telling the child to report a self-contained answer before finishing and to raise keyed needs-decision/blocked questions the parent must answer.

The tool and its guidance are owned by the child scope: roots, one-shot children, remote providers, and sibling scopes never see them.

Quick start

Route A — published npm package (recommended)

dsh plugin --profile web add @hy-sde-org/dsh-tool-subagent-report

The row is a plain host row (hy-sde-subagent-tool-subagent-report); override it per deployment by patching the row by id — for example reportDelivery: quiet for a parked-parent model. Or install the package as a plain dependency (npm install @hy-sde-org/dsh-tool-subagent-report) and mount its cordis.patch.yml row by hand.

Route B — from source (validate this checkout or hack on the plugin)

git clone git@github.com:hy-sde/dsh-plugins.git
cd dsh-plugins
pnpm install
cd dsh-tool-subagent-report/packages/tool-subagent-report
PACKAGE_TARBALL="$(pnpm pack | tail -n 1)"
dsh plugin --profile web add "$PWD/$PACKAGE_TARBALL"

prepack rebuilds dist/, so the tarball is always current.

Verify

dsh web --dump-config

The composed tree must show the hy-sde-subagent-tool-subagent-report row loading @hy-sde-org/dsh-tool-subagent-report. On a stock published stack the row instead fails at boot with a missing registerContinuableSetup service method — the documented contract (see Prerequisites).

Uninstall

dsh plugin --profile web remove @hy-sde-org/dsh-tool-subagent-report

Development

pnpm install
pnpm -r check
pnpm -r test
pnpm -r build
bash scripts/release-public.sh --check      # pre-publish validation
bash scripts/release-public.sh --publish    # publish to npm

License and attribution

This package is licensed MIT — the same license as its upstream DeepSeek Harness packages (MIT License, © 2026 DeepSeek). The report tool and its guidance are ported from the fork's @deepseek-ai/dsh-tool-subagent-report with the port substrate integrated as peer dependencies, not copied source — see THIRD-PARTY-NOTICES.md. Provenance is conceptually inspired by firstmate (MIT, © 2026 Kun Chen); no firstmate code is included.

Layout

packages/tool-subagent-report/   @hy-sde-org/dsh-tool-subagent-report — the plugin
  cordis.patch.yml               the installable harness bundle (one host row)
  src/index.ts                   the child-scope installer + report tool/guidance
  src/report-contract.ts         the fork-only subagent report channel contract
  tests/                         registration/delivery suite + local seam