Fix #214: ChangeProposal (propose-then-confirm)

Implements non-negotiable #1: the AI assistant never writes autonomously. Every
assistant/contributor "write" emits a ChangeProposal — a structured diff a human
approves, edits, or rejects. Design: docs/design/change-proposal.md.

Structural guarantee: a proposal's operations reach the DB ONLY via
change_proposal_service.apply(), which requires the actor be an editor and
dispatches each op through the normal editing services (person/name/event/
relationship/source/citation create/update/delete) — so every change passes the
privacy engine and is audited as the approving human. propose() only inserts a
pending row; it performs no domain mutation. Model providers stay read-only, so
no model response can mutate tree data.

- ChangeProposal model + migration (status pending|applied|rejected, origin
  assistant|contributor, JSONB operations, reviewer + apply_error).
- Service: propose / list / get / apply (with optional edited ops) / reject /
  delete; a dispatcher mapping ops → editing services. v1 applies ops in order,
  not cross-op transactional (single-op is atomic; documented).
- API /trees/{id}/proposals + a frontend review page (approve/reject; editor-
  gated) and sidebar entry.

Tests: proposal doesn't apply until approved; reject doesn't apply; non-editor
member can see but not apply; multi-op; approve-with-edits; apply-error keeps it
pending. Full suite 87 passed; single alembic head.

Closes #214

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Signed-off-by: Justin Paul <justin@jpaul.me>
This commit is contained in:
2026-06-09 15:44:40 -04:00
parent 251a10a087
commit abaa8efdd5
14 changed files with 1974 additions and 0 deletions
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"use client";
import { useParams } from "next/navigation";
import { useCallback, useEffect, useState } from "react";
import { api } from "@/lib/api/client";
import type { components } from "@/lib/api/schema";
import { Button } from "@/components/ui/button";
import { Card, CardContent } from "@/components/ui/card";
type Proposal = components["schemas"]["ChangeProposalRead"];
type Op = { op: string; entity_type: string; entity_id?: string | null; payload?: Record<string, unknown> };
const STATUS_STYLE: Record<string, string> = {
pending: "border-bronze/40 text-bronze",
applied: "border-green-600/40 text-green-700 dark:text-green-400",
rejected: "border-[var(--border)] text-[var(--muted)]",
};
export default function ProposalsPage() {
const { id: treeId } = useParams<{ id: string }>();
const [proposals, setProposals] = useState<Proposal[]>([]);
const [meRole, setMeRole] = useState<string | null>(null);
const [ready, setReady] = useState(false);
const [busy, setBusy] = useState<string | null>(null);
const load = useCallback(async () => {
const [props, me, members] = await Promise.all([
api.GET("/api/v1/trees/{tree_id}/proposals", { params: { path: { tree_id: treeId } } }),
api.GET("/api/v1/users/me"),
api.GET("/api/v1/trees/{tree_id}/members", { params: { path: { tree_id: treeId } } }),
]);
const myId = me.data?.id;
setMeRole((members.data ?? []).find((m) => m.user_id === myId)?.role ?? null);
setProposals(props.data ?? []);
setReady(true);
}, [treeId]);
useEffect(() => {
load();
}, [load]);
const canReview = meRole === "owner" || meRole === "editor";
async function act(pid: string, action: "apply" | "reject") {
setBusy(pid);
const { error, response } = await api.POST(
`/api/v1/trees/{tree_id}/proposals/{proposal_id}/${action}` as "/api/v1/trees/{tree_id}/proposals/{proposal_id}/apply",
{ params: { path: { tree_id: treeId, proposal_id: pid } } },
);
setBusy(null);
if (error) {
// 409 = couldn't apply (e.g. references a missing record); reload shows apply_error.
if (response.status !== 409) alert("Action failed.");
}
load();
}
if (!ready) return <p className="text-[var(--muted)]">Loading</p>;
return (
<div className="space-y-6">
<div>
<h1 className="text-2xl font-semibold">Change proposals</h1>
<p className="mt-1 text-sm text-[var(--muted)]">
Suggested edits (from the assistant or contributors). Nothing changes until you approve
approving applies it as your own edit, through the normal checks and audit log.
</p>
</div>
{proposals.length === 0 ? (
<p className="text-[var(--muted)]">No proposals.</p>
) : (
<ul className="space-y-3">
{proposals.map((p) => {
const ops = (p.operations as Op[]) ?? [];
return (
<li key={p.id}>
<Card>
<CardContent className="space-y-3 p-5">
<div className="flex flex-wrap items-start justify-between gap-3">
<div className="min-w-0">
<div className="font-medium">{p.summary}</div>
<div className="text-xs text-[var(--muted)]">
{p.origin} · {ops.length} change{ops.length === 1 ? "" : "s"}
</div>
</div>
<span
className={`shrink-0 rounded-full border px-2.5 py-0.5 text-xs ${
STATUS_STYLE[p.status] ?? ""
}`}
>
{p.status}
</span>
</div>
{p.rationale && <p className="text-sm text-[var(--muted)]">{p.rationale}</p>}
<ul className="space-y-1 text-sm">
{ops.map((o, i) => (
<li key={i} className="rounded-md bg-bronze/[0.05] px-3 py-1.5">
<span className="font-medium capitalize">{o.op}</span>{" "}
<span className="text-[var(--muted)]">{o.entity_type}</span>
{o.payload && Object.keys(o.payload).length > 0 && (
<span className="text-[var(--muted)]">
{" "}
·{" "}
{Object.entries(o.payload)
.map(([k, v]) => `${k}: ${String(v)}`)
.join(", ")}
</span>
)}
</li>
))}
</ul>
{p.apply_error && (
<p className="rounded-md border border-red-600/40 bg-red-600/[0.06] px-3 py-2 text-sm text-red-700 dark:text-red-400">
Couldnt apply: {p.apply_error}
</p>
)}
{p.status === "pending" && canReview && (
<div className="flex gap-2">
<Button size="sm" disabled={busy === p.id} onClick={() => act(p.id, "apply")}>
Approve & apply
</Button>
<Button
size="sm"
variant="outline"
disabled={busy === p.id}
onClick={() => act(p.id, "reject")}
>
Reject
</Button>
</div>
)}
{p.status === "pending" && !canReview && (
<p className="text-xs text-[var(--muted)]">Only an editor can approve this.</p>
)}
</CardContent>
</Card>
</li>
);
})}
</ul>
)}
</div>
);
}