create-artifact

Load dh:dh-cli-usage before using <sam_cli/> or <dh_scripts/>.

Create Artifact

Register your deliverable through the configured content provider with mcp__plugin_dh_backlog__artifact_register, or use the artifact register CLI subcommand in scripting contexts. Pass the content in the registration call and return only its logical ID.

Storage boundary

• artifact_register writes through the selected provider; agents do not choose or access its storage layer.
• artifact_read(item_id, artifact_type) retrieves the current artifact through the same boundary.
• Background agents return the logical ID instead of repeating the document in their completion message.

Invocation

MCP:

mcp__plugin_dh_backlog__artifact_register(
    item_id=<int | str>,          # Backlog item identifier — REQUIRED
    artifact_type=<str>,          # Artifact type string — REQUIRED (see table below)
    artifact_id=<str>,            # Logical identifier — REQUIRED
    status="current",             # Lifecycle status: draft | current | superseded | archived
    agent=<str>,                  # Name of the producing agent (default: "")
    content=<str>,                # Non-empty full artifact content — REQUIRED
)

CLI equivalent (scripting/dispatch contexts):

<sam_cli/> artifact register \
  --item-id <identifier> \
  --artifact-type <str> \
  --artifact-id <str> \
  --status "current" \
  --agent <str> \
  --content <str>

--status and --agent are optional (same defaults as the MCP form). The examples below use the MCP form; substitute the same values into the CLI flags above for a scripting context.

Return value: dict with keys registered (bool), artifact_count (int), action ("added" or "updated"), content_stored (bool), messages, warnings. Check action in your STATUS: DONE report — do NOT paste the full content.

Parameters

artifact_type

The registry of recognised type strings, the agent permitted to register each, and which types a gate reads is dh_core/artifact_registry.py. The decomposition-exit gate imports it, and a test holds every shipped registration against it, so it is the only place a type is added or its writer changed. A call naming a (type, agent) pair it does not declare fails that test. The rules governing the registry — ownership, registration, discovery — are in docs/artifact-registry.md.

task-plan is in the enum and deliberately carries no registry row — see task-plan below.

artifact_id

Use a stable logical identifier, such as feature-context-{slug}, architect-{slug}, codebase-patterns-{slug}, T0-baseline-{slug}, or TN-verification-{slug}. Consumers use the owner and artifact type to discover content; the identifier distinguishes multiple artifacts of the same type.

content

Pass a non-empty full markdown string. The current registration contract requires content=; without it, the call is invalid and artifact_read(item_id, artifact_type) cannot return the document.

Examples by artifact type

feature-context

mcp__plugin_dh_backlog__artifact_register(
    item_id=1770,
    artifact_type="feature-context",
    artifact_id="feature-context-my-feature",
    content=feature_context_markdown,
    agent="feature-researcher",
)

codebase-analysis (one call per focus area)

mcp__plugin_dh_backlog__artifact_register(
    item_id=1770,
    artifact_type="codebase-analysis",
    artifact_id="codebase-patterns-my-feature",
    content=patterns_markdown,
    agent="codebase-analyzer",
)

mcp__plugin_dh_backlog__artifact_register(
    item_id=1770,
    artifact_type="codebase-analysis",
    artifact_id="codebase-architecture-my-feature",
    content=architecture_markdown,
    agent="codebase-analyzer",
)

architect

mcp__plugin_dh_backlog__artifact_register(
    item_id=1770,
    artifact_type="architect",
    artifact_id="architect-my-feature",
    content=architect_markdown,
    agent="{resolved_agent}",
)

task-plan

task-plan is an ArtifactType member and a real manifest entry: sam_plan(config={"action": "create", "issue": N, ...}) registers it, so a worktree-isolated reader can resolve the plan's address. That is a capability of the plan store, not a route an agent uses.

No agent may register or read it that way, which is why the registry carries no row for it. Create plans with mcp__plugin_dh_sam__sam_plan(config={"action": "create", ...}) and retrieve them with mcp__plugin_dh_sam__sam_plan(plan="{plan_ref}", config={"action": "read"}), never through artifact_register or artifact_read.

research (secondary documents, rationale, coverage analysis)

mcp__plugin_dh_backlog__artifact_register(
    item_id=1770,
    artifact_type="research",
    artifact_id="swarm-rationale-my-feature",
    content=rationale_markdown,
    agent="swarm-task-planner",
)

STATUS: DONE report format

Do NOT paste the full document content. Report only:

STATUS: DONE
ARTIFACT: type={artifact_type}, action={action}, content_stored={content_stored}, chars={len(content)}

Include a <concerns> block if quality issues were found during the work.