linear-write-prd

name	linear-write-prd
description	Creates or idempotently updates a PRD as a Linear Project carrying exactly one PRD lifecycle project-label (`prd-draft` by default, or `prd-ready` when initial_role is ready so lisa:linear-prd-intake auto-claims it). The Linear PRD-source writer behind lisa:prd-source-write. Dedupes by a stable marker embedded in the Project description (matched by marker, never by name). Uses the Linear MCP.
allowed-tools	["Skill","Bash","mcp__linear-server__list_teams","mcp__linear-server__list_projects","mcp__linear-server__get_project","mcp__linear-server__save_project","mcp__linear-server__list_project_labels","mcp__linear-server__create_project_label"]

Write Linear PRD: $ARGUMENTS

Create (or update) a PRD as a Linear Project in the configured workspace/team. Invoked by lisa:prd-source-write when source = linear; do not call directly from a vendor-neutral caller.

Linear's PRD lifecycle uses project-level labels (prd-*), per config-resolution. (The Linear PRD source models a PRD as a Project — the same shape lisa:linear-prd-intake scans.)

$ARGUMENTS carries the lisa:prd-source-write spec: title, body (full PRD markdown), initial_role (draft | ready, default draft), dedupe_key, marker, optional source_ref.

Phase 1 — Resolve workspace/team + PRD lifecycle labels

read_g() { local lv gv; lv=$(jq -r "$1 // empty" .lisa.config.local.json 2>/dev/null); gv=$(jq -r "$1 // empty" .lisa.config.json 2>/dev/null); echo "${lv:-${gv:-$2}}"; }
WORKSPACE=$(read_g '.linear.workspace' '')
TEAM=$(read_g '.linear.teamKey' '')
# Resolve the FULL PRD lifecycle vocabulary from config (never hard-code names) so the one-of
# reconcile and the past-ready check are correct even when a project renamed any label.
PRD_DRAFT=$(read_g '.linear.labels.prd.draft' 'prd-draft')
PRD_READY=$(read_g '.linear.labels.prd.ready' 'prd-ready')
PRD_IN_REVIEW=$(read_g '.linear.labels.prd.in_review' 'prd-in-review')
PRD_BLOCKED=$(read_g '.linear.labels.prd.blocked' 'prd-blocked')
PRD_TICKETED=$(read_g '.linear.labels.prd.ticketed' 'prd-ticketed')
PRD_SHIPPED=$(read_g '.linear.labels.prd.shipped' 'prd-shipped')
PRD_VERIFIED=$(read_g '.linear.labels.prd.verified' 'prd-verified')
ALL_PRD_LABELS=("$PRD_DRAFT" "$PRD_READY" "$PRD_IN_REVIEW" "$PRD_BLOCKED" "$PRD_TICKETED" "$PRD_SHIPPED" "$PRD_VERIFIED")
PROGRESSED=("$PRD_IN_REVIEW" "$PRD_BLOCKED" "$PRD_TICKETED" "$PRD_SHIPPED" "$PRD_VERIFIED")
[ -z "$WORKSPACE" ] && { echo "Error: linear.workspace not set in .lisa.config.json."; exit 1; }
[ -z "$TEAM" ] && { echo "Error: linear.teamKey not set in .lisa.config.json. A team key is required to create or scope a Linear Project."; exit 1; }

Resolve the target project-label from initial_role: ready → $PRD_READY, else $PRD_DRAFT. Resolve its label id via mcp__linear-server__list_project_labels (create via mcp__linear-server__create_project_label if missing).

Phase 2 — Dedupe by marker (search before create)

The marker is embedded in the Project description. Find an existing Project carrying it — match the marker, never the project name:

1. mcp__linear-server__list_projects scoped to the team/workspace (filtered by the prd-* label set when supported), then inspect each candidate's description via mcp__linear-server__get_project for the marker. If source_ref was passed, target it directly.
2. If a Project with the marker exists → update; else → create.

Phase 3 — Create or update

Marker + usage-ledger preservation (both paths). Before writing the description, ensure it contains exactly one marker line — inject the marker if the synthesized description lacks it. Never write a markerless description (including UPDATE / source_ref): that breaks future dedupe. If the live Project description already contains the canonical managed ## Lisa Usage section, preserve it verbatim unless the caller intentionally supplied an updated canonical section; use the shared usage-accounting serializer/merge path rather than hand-editing ledger rows.

CREATE: mcp__linear-server__save_project with:

• name: $TITLE
• description: the marker-normalized full PRD markdown
• teamIds: [<resolved team id>]
• labelIds: [<role label id>] (exactly one PRD lifecycle label)
• state: Linear Project default (e.g. backlog)

UPDATE (existing project or source_ref): save_project with the project id and only the changed fields — regenerate the marker-normalized description without dropping the managed ## Lisa Usage section, and reconcile labels to exactly one PRD lifecycle label: add the role label, remove every other label in the resolved ${ALL_PRD_LABELS[@]} set (config-resolved names, not a hard-coded list). Do not down-rank a Project whose current label is in the resolved ${PROGRESSED[@]} set (already past ready) — leave it and report reused (already past ready).

Phase 4 — Return

ref: "<linear-project-id-or-slug>"
url: "<project url>"
role: draft | ready          # (or the Project's current role when reused past ready)
marker: "<MARKER>"
outcome: created | reused

Rules

• Exactly one PRD lifecycle project-label at all times.
• Match dedupe by marker, never by project name.
• Preserve an existing canonical ## Lisa Usage section on update; never append a second usage section or silently drop ledger rows.
• Never down-rank a Project already past ready.
• Source-side writer (prd-* project labels) — never touches issue-level build labels (status:*), which are lisa:linear-write-issue's lane (see config-resolution self-host separation).
• Resolve label names from config (linear.labels.prd.*) — never hardcode.