Files
paperclip/server/src/services/plugin-environment-driver.ts
T
Devin Foley 486fb88a15 Add Cloudflare sandbox provider plugin (#5687)
> _Stacked on top of #5685#5686. Diff against master includes commits
from earlier PRs in the stack — review focuses on the two new commits
(`Extend sandbox callback bridge for Worker-hosted plugins` + `Add
Cloudflare sandbox provider plugin`)._

## Thinking Path

> - Paperclip orchestrates AI agents for zero-human companies
> - Each agent runs in a sandbox environment, and operators choose which
provider backs that sandbox — today E2B and Daytona are bundled with the
platform
> - Cloudflare Workers + Durable Objects + the Sandbox SDK offer a
credible new option: globally distributed, cheap idle, and
operator-deployable as a single Worker
> - To plug it in, Paperclip needs (a) a provider plugin that speaks the
`PaperclipPluginManifestV1` lifecycle and (b) a small operator-deployed
Worker — the **bridge** — that adapts Paperclip's runtime RPCs to the
Cloudflare Sandbox SDK
> - The plugin extends the existing sandbox-callback-bridge with a
`bridge.transport: "worker"` discriminator so the platform routes
runtime RPCs through the Worker bridge instead of the in-process runner
> - This pull request adds the plugin, the bridge Worker template, and
the supporting adapter-utils + server hooks the new transport needs
> - The benefit is that operators can run sandboxes on Cloudflare's edge
with no new platform code beyond installing the plugin and deploying the
Worker

## What Changed

**Shared support (`Extend sandbox callback bridge for Worker-hosted
plugins`):**

- `packages/adapter-utils/src/sandbox-callback-bridge.{ts,test.ts}`:
expose `expectedHostHeader` so plugin-side bridge clients can verify the
canonical request envelope before forwarding.
- `packages/adapter-utils/src/command-managed-runtime.{ts,test.ts}`:
relax the always-fresh runner construction so callers can re-use a
runner across exec calls (Worker-hosted bridges hold the runner inside a
Durable Object).
- `server/src/services/environment-runtime.ts` +
`environment-runtime.test.ts`: route Worker-hosted bridges through the
same env-shaping path as E2B and pin the `requestEnv` contract.
- `server/src/services/plugin-environment-driver.ts`: thread an optional
`issueId` through the runtime descriptor so bridges can scope leases to
the originating issue (used by Cloudflare to map a sandbox to the
issue/workflow for billing and audit).
- `packages/plugins/sdk/src/protocol.ts`: add `issueId?` to
`PluginEnvironmentDriverBaseParams` and the new `bridge.transport:
"worker"` discriminator that the new plugin declares.
- `server/__tests__/heartbeat-plugin-environment.test.ts`: pin the
heartbeat path against the new runtime descriptor.

**The Cloudflare plugin itself (`Add Cloudflare sandbox provider
plugin`):**

- `packages/plugins/sandbox-providers/cloudflare/`: plugin entry,
manifest, plugin runtime (lifecycle + bridge client), config parsing,
and Vitest coverage. Manifest declares `bridge.transport: "worker"` so
the platform routes runtime RPCs through the bridge client.
- `bridge-template/`: a Worker template the operator deploys with
`wrangler`. Owns Durable Object-backed sessions (`sessions.ts`),
exec/stream routes (`exec.ts`, `routes.ts`), and an HMAC auth layer
(`auth.ts`) that pins the `Host` header surface. Includes the
SDK-contract-correct exec implementation, lease recovery, and chunked
stdout/stderr streaming.
- Tests cover lease/session handoff (`bridge-template/src/exec.test.ts`,
`routes.test.ts`), bridge client request shaping
(`src/bridge-client.test.ts`), and end-to-end plugin behavior
(`src/plugin.test.ts`) including streamed exec output. 27 tests in
total.
- `README.md` walks the operator through deploying the bridge Worker,
registering the plugin, and configuring the runtime.

## Verification

- `pnpm typecheck`
- `pnpm exec vitest run --no-coverage
packages/adapter-utils/src/sandbox-callback-bridge.test.ts
packages/adapter-utils/src/command-managed-runtime.test.ts
server/src/__tests__/environment-runtime.test.ts
server/src/__tests__/heartbeat-plugin-environment.test.ts`
- `(cd packages/plugins/sandbox-providers/cloudflare && pnpm test)` — 27
passing

For an operator-side smoke test:

1. Deploy the bridge: `cd
packages/plugins/sandbox-providers/cloudflare/bridge-template &&
wrangler deploy`
2. Register the plugin in your Paperclip instance, point its bridge URL
at the deployed Worker, set the HMAC shared secret.
3. Create a sandbox environment whose provider is `cloudflare`, then run
a Codex or Claude job against it.

## Risks

- Adds a new `bridge.transport: "worker"` code path, but the existing
E2B / Daytona transports go through the same shaped helpers and have
explicit test coverage that pins their behavior unchanged.
- The Worker bridge stores session state in a Durable Object; operator
instances must be aware of the corresponding Cloudflare costs (DO
requests, storage). Documented in the README.
- The `issueId` plumbing is optional throughout — existing plugins that
don't supply it continue to work.

## Model Used

- Provider: Anthropic
- Model: Claude Opus 4.7 (1M context)
- Capabilities used: extended reasoning, tool use (Read/Edit/Bash/Grep)

## Checklist

- [x] I have included a thinking path that traces from project context
to this change
- [x] I have specified the model used (with version and capability
details)
- [x] I have checked ROADMAP.md and confirmed this PR does not duplicate
planned core work
- [x] I have run tests locally and they pass
- [x] I have added or updated tests where applicable
- [ ] If this change affects the UI, I have included before/after
screenshots — N/A, no UI change
- [x] I have updated relevant documentation to reflect my changes
(plugin README, bridge-template README)
- [x] I have considered and documented any risks above
- [x] I will address all Greptile and reviewer comments before
requesting merge

---------

Co-authored-by: Paperclip <noreply@paperclip.ing>
2026-05-11 07:33:13 -07:00

348 lines
11 KiB
TypeScript

import type { Db } from "@paperclipai/db";
import type {
EnvironmentProbeResult,
PluginEnvironmentConfig,
PluginEnvironmentDriverDeclaration,
} from "@paperclipai/shared";
import type {
PluginEnvironmentExecuteParams,
PluginEnvironmentExecuteResult,
PluginEnvironmentLease,
PluginEnvironmentRealizeWorkspaceParams,
PluginEnvironmentRealizeWorkspaceResult,
} from "@paperclipai/plugin-sdk";
import { unprocessable } from "../errors.js";
import { pluginRegistryService } from "./plugin-registry.js";
import type { PluginWorkerManager } from "./plugin-worker-manager.js";
export function pluginDriverProviderKey(config: Pick<PluginEnvironmentConfig, "pluginKey" | "driverKey">): string {
return `${config.pluginKey}:${config.driverKey}`;
}
export async function resolvePluginEnvironmentDriver(input: {
db: Db;
workerManager: PluginWorkerManager;
config: PluginEnvironmentConfig;
}) {
const pluginRegistry = pluginRegistryService(input.db);
const plugin = await pluginRegistry.getByKey(input.config.pluginKey);
if (!plugin || plugin.status !== "ready") {
throw new Error(`Plugin environment driver "${pluginDriverProviderKey(input.config)}" is not ready.`);
}
const driver = plugin.manifestJson.environmentDrivers?.find(
(candidate) => candidate.driverKey === input.config.driverKey,
);
if (!driver) {
throw new Error(`Plugin "${input.config.pluginKey}" does not declare environment driver "${input.config.driverKey}".`);
}
if (!input.workerManager.isRunning(plugin.id)) {
throw new Error(`Plugin environment driver "${pluginDriverProviderKey(input.config)}" has no running worker.`);
}
return { plugin, driver };
}
export async function resolvePluginEnvironmentDriverByKey(input: {
db: Db;
workerManager: PluginWorkerManager;
driverKey: string;
}) {
return await resolvePluginSandboxProviderDriverByKey({
db: input.db,
driverKey: input.driverKey,
workerManager: input.workerManager,
requireRunning: true,
});
}
export async function resolvePluginSandboxProviderDriverByKey(input: {
db: Db;
driverKey: string;
workerManager?: PluginWorkerManager;
requireRunning?: boolean;
}): Promise<{ plugin: Awaited<ReturnType<ReturnType<typeof pluginRegistryService>["list"]>>[number]; driver: PluginEnvironmentDriverDeclaration } | null> {
const pluginRegistry = pluginRegistryService(input.db);
const plugins = await pluginRegistry.list();
for (const plugin of plugins) {
const driver = plugin.manifestJson.environmentDrivers?.find(
(candidate) => candidate.driverKey === input.driverKey && candidate.kind === "sandbox_provider",
) as PluginEnvironmentDriverDeclaration | undefined;
if (!driver) continue;
if (input.requireRunning) {
if (plugin.status !== "ready") continue;
if (!input.workerManager?.isRunning(plugin.id)) continue;
}
return { plugin, driver };
}
return null;
}
export async function listReadyPluginEnvironmentDrivers(input: {
db: Db;
workerManager?: PluginWorkerManager;
}) {
if (!input.workerManager) return [];
const pluginRegistry = pluginRegistryService(input.db);
const plugins = await pluginRegistry.list();
return plugins.flatMap((plugin) => {
if (plugin.status !== "ready" || !input.workerManager?.isRunning(plugin.id)) return [];
return (plugin.manifestJson.environmentDrivers ?? [])
.filter((driver) => driver.kind === "sandbox_provider")
.map((driver) => ({
pluginId: plugin.id,
pluginKey: plugin.pluginKey,
driverKey: driver.driverKey,
displayName: driver.displayName,
description: driver.description,
configSchema: driver.configSchema,
}));
});
}
export async function validatePluginSandboxProviderConfig(input: {
db: Db;
workerManager: PluginWorkerManager;
provider: string;
config: Record<string, unknown>;
}): Promise<{
normalizedConfig: Record<string, unknown>;
pluginId: string;
pluginKey: string;
driver: PluginEnvironmentDriverDeclaration;
}> {
const resolved = await resolvePluginSandboxProviderDriverByKey({
db: input.db,
driverKey: input.provider,
workerManager: input.workerManager,
requireRunning: true,
});
if (!resolved) {
throw unprocessable(`Sandbox provider "${input.provider}" is not installed or its plugin worker is not running.`);
}
const result = await input.workerManager.call(resolved.plugin.id, "environmentValidateConfig", {
driverKey: input.provider,
config: input.config,
});
if (!result.ok) {
throw unprocessable(
result.errors?.[0] ?? `Sandbox provider "${input.provider}" rejected its config.`,
{
errors: result.errors ?? [],
warnings: result.warnings ?? [],
},
);
}
return {
normalizedConfig: result.normalizedConfig ?? input.config,
pluginId: resolved.plugin.id,
pluginKey: resolved.plugin.pluginKey,
driver: resolved.driver,
};
}
export async function validatePluginEnvironmentDriverConfig(input: {
db: Db;
workerManager: PluginWorkerManager;
config: PluginEnvironmentConfig;
}): Promise<PluginEnvironmentConfig> {
const { plugin } = await resolvePluginEnvironmentDriver(input);
const result = await input.workerManager.call(plugin.id, "environmentValidateConfig", {
driverKey: input.config.driverKey,
config: input.config.driverConfig,
});
if (!result.ok) {
throw unprocessable(
result.errors?.[0] ?? `Plugin environment driver "${pluginDriverProviderKey(input.config)}" rejected its config.`,
{
errors: result.errors ?? [],
warnings: result.warnings ?? [],
},
);
}
return {
...input.config,
driverConfig: result.normalizedConfig ?? input.config.driverConfig,
};
}
export async function probePluginEnvironmentDriver(input: {
db: Db;
workerManager: PluginWorkerManager;
companyId: string;
environmentId: string;
config: PluginEnvironmentConfig;
}): Promise<EnvironmentProbeResult> {
const { plugin } = await resolvePluginEnvironmentDriver(input);
const result = await input.workerManager.call(plugin.id, "environmentProbe", {
driverKey: input.config.driverKey,
companyId: input.companyId,
environmentId: input.environmentId,
config: input.config.driverConfig,
});
return {
ok: result.ok,
driver: "plugin",
summary: result.summary ?? `Plugin environment driver "${pluginDriverProviderKey(input.config)}" probe ${result.ok ? "passed" : "failed"}.`,
details: {
pluginKey: input.config.pluginKey,
driverKey: input.config.driverKey,
diagnostics: result.diagnostics ?? [],
metadata: result.metadata ?? {},
},
};
}
export async function probePluginSandboxProviderDriver(input: {
db: Db;
workerManager: PluginWorkerManager;
companyId: string;
environmentId: string;
provider: string;
config: Record<string, unknown>;
}): Promise<EnvironmentProbeResult> {
const resolved = await resolvePluginEnvironmentDriverByKey({
db: input.db,
workerManager: input.workerManager,
driverKey: input.provider,
});
if (!resolved) {
return {
ok: false,
driver: "sandbox",
summary: `Sandbox provider "${input.provider}" is not installed or its plugin worker is not running.`,
details: {
provider: input.provider,
},
};
}
const { provider: _provider, ...driverConfig } = input.config;
const result = await input.workerManager.call(resolved.plugin.id, "environmentProbe", {
driverKey: input.provider,
companyId: input.companyId,
environmentId: input.environmentId,
config: driverConfig,
});
return {
ok: result.ok,
driver: "sandbox",
summary: result.summary ?? `Sandbox provider "${input.provider}" probe ${result.ok ? "passed" : "failed"}.`,
details: {
provider: input.provider,
pluginKey: resolved.plugin.pluginKey,
diagnostics: result.diagnostics ?? [],
metadata: result.metadata ?? {},
},
};
}
export async function resumePluginEnvironmentLease(input: {
db: Db;
workerManager: PluginWorkerManager;
companyId: string;
environmentId: string;
issueId?: string | null;
config: PluginEnvironmentConfig;
providerLeaseId: string;
leaseMetadata?: Record<string, unknown>;
}): Promise<PluginEnvironmentLease> {
const { plugin } = await resolvePluginEnvironmentDriver(input);
return await input.workerManager.call(plugin.id, "environmentResumeLease", {
driverKey: input.config.driverKey,
companyId: input.companyId,
environmentId: input.environmentId,
issueId: input.issueId ?? null,
config: input.config.driverConfig,
providerLeaseId: input.providerLeaseId,
leaseMetadata: input.leaseMetadata,
});
}
export async function destroyPluginEnvironmentLease(input: {
db: Db;
workerManager: PluginWorkerManager;
companyId: string;
environmentId: string;
issueId?: string | null;
config: PluginEnvironmentConfig;
providerLeaseId: string | null;
leaseMetadata?: Record<string, unknown>;
}): Promise<void> {
const { plugin } = await resolvePluginEnvironmentDriver(input);
await input.workerManager.call(plugin.id, "environmentDestroyLease", {
driverKey: input.config.driverKey,
companyId: input.companyId,
environmentId: input.environmentId,
issueId: input.issueId ?? null,
config: input.config.driverConfig,
providerLeaseId: input.providerLeaseId,
leaseMetadata: input.leaseMetadata,
});
}
export async function realizePluginEnvironmentWorkspace(input: {
db: Db;
workerManager: PluginWorkerManager;
pluginId?: string | null;
params: PluginEnvironmentRealizeWorkspaceParams;
config: PluginEnvironmentConfig;
}): Promise<PluginEnvironmentRealizeWorkspaceResult> {
const { plugin } = input.pluginId
? { plugin: { id: input.pluginId } }
: await resolvePluginEnvironmentDriver({
db: input.db,
workerManager: input.workerManager,
config: input.config,
});
return await input.workerManager.call(plugin.id, "environmentRealizeWorkspace", input.params);
}
export async function executePluginEnvironmentCommand(input: {
db: Db;
workerManager: PluginWorkerManager;
pluginId?: string | null;
params: PluginEnvironmentExecuteParams;
config: PluginEnvironmentConfig;
}): Promise<PluginEnvironmentExecuteResult> {
const { plugin } = input.pluginId
? { plugin: { id: input.pluginId } }
: await resolvePluginEnvironmentDriver({
db: input.db,
workerManager: input.workerManager,
config: input.config,
});
return await input.workerManager.call(
plugin.id,
"environmentExecute",
input.params,
resolvePluginExecuteRpcTimeoutMs({
requestedTimeoutMs: input.params.timeoutMs,
config: input.config.driverConfig,
}),
);
}
const RPC_OVERHEAD_BUFFER_MS = 30_000;
export function resolvePluginExecuteRpcTimeoutMs(input: {
requestedTimeoutMs?: number;
config: Record<string, unknown>;
}): number | undefined {
let baseMs: number | undefined;
if (Number.isFinite(input.requestedTimeoutMs) && (input.requestedTimeoutMs ?? 0) > 0) {
baseMs = Math.trunc(input.requestedTimeoutMs!);
} else {
const configTimeoutMs = typeof input.config.timeoutMs === "number" ? input.config.timeoutMs : null;
if (configTimeoutMs && Number.isFinite(configTimeoutMs) && configTimeoutMs > 0) {
baseMs = Math.trunc(configTimeoutMs);
}
}
return baseMs != null ? baseMs + RPC_OVERHEAD_BUFFER_MS : undefined;
}