fix(cli): read the canonical cloud session instead of shelling out, and stop reading AGENT_RELAY_BIN - #417
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…nd stop reading AGENT_RELAY_BIN
Relayfile's Go CLI obtained its Agent Relay cloud session by execing
`agent-relay cloud session --json --reveal-token`, and it chose the binary to
exec from AGENT_RELAY_BIN. Everywhere else in Agent Relay that variable names
the *broker* binary — relay's client-factory, harness-driver broker-path and
sdk-py all resolve agent-relay-broker from it — and every relay-spawned agent
exports it. So relayfile exec'd the Rust broker, got
"unrecognized subcommand 'cloud'", and reported the failure as
"agent-relay CLI >= 8.7.0 required". Auto-recovery from a routine access-token
expiry was blocked, turning an expiry into an outage.
Cloud auth now uses the path that already exists on the TypeScript side
(packages/agents/src/connect.ts, packages/sdk/typescript/src/cloud-token-provider.ts):
read ~/.agentworkforce/relay/cloud-auth.json (or the CLOUD_API_* environment),
and refresh through Cloud's own /api/v1/auth/token/refresh when the access
token is inside its window. This is not a third credential store — it is
relay's file, relay's endpoint, relay's 5-minute/24-hour windows, and relay's
cloud-auth.json.lock discipline, so a relayfile refresh and an agent-relay
refresh cannot interleave. Rotated pairs are written back at 0600 because
Cloud rotates the refresh token on every refresh; an environment-supplied
session is refreshed in memory only, never to disk.
AGENT_RELAY_BIN is no longer read for any purpose. Workspace resolution still
shells out and now resolves its binary from RELAYFILE_AGENT_RELAY_BIN, else
PATH. The compatibility probe no longer asks for a `cloud` subcommand, and its
error names the argv it ran, the binary it ran it with, and how that binary was
resolved.
Docs: §5.2 of the productized-cloud-mount contract said "Relayfile MUST NOT
refresh Cloud tokens itself". That clause is retired in this change rather than
left to outrank the new behaviour.
Verified against the live machine, same broken environment:
AGENT_RELAY_BIN=~/.local/bin/agent-relay-broker relayfile status
0.10.39: auth: agent-relay session unavailable
patched: auth: agent-relay session ok
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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📝 WalkthroughWalkthroughRelayfile now loads cloud credentials from ChangesCloud authentication and CLI integration
Estimated code review effort: 4 (Complex) | ~60 minutes Merge Risk: 🟠 High · up to This change makes relayfile read and refresh the canonical Cloud session instead of invoking the broker, but concurrent refreshes can still invalidate the stored credentials or report an authentication failure, and a live refresh may be mistaken for a stale lock. The merge should wait until these credential-refresh races are fixed; otherwise users may lose automatic recovery and need to log in again. Sequence Diagram(s)sequenceDiagram
participant Relayfile
participant CredentialStore
participant CloudAPI
participant AgentRelay
Relayfile->>CredentialStore: Load environment or canonical session
Relayfile->>CloudAPI: Refresh expiring session
CloudAPI-->>Relayfile: Return rotated credentials
Relayfile->>CredentialStore: Persist rotated file credentials
Relayfile->>AgentRelay: Resolve active workspace
AgentRelay-->>Relayfile: Return workspace data
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| // relay requires the full quartet before it treats the environment as a | ||
| // session; a partial set falls through to the file. | ||
| if !auth.valid() { |
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When CI exports only CLOUD_API_ACCESS_TOKEN (optionally with CLOUD_API_URL), valid() rejects the environment session because it also requires a refresh token, expiry, and URL, so this falls through to an unrelated credential file or reports that no login exists. This conflicts with the existing environment contract in packages/agents/src/connect.ts:93-108 and the integration documentation, both of which treat the access token as sufficient and synthesize defaults when refresh data is absent.
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Valid — fixed in 2dacc4b. agentRelayStoredAuthFromEnv now treats CLOUD_API_ACCESS_TOKEN alone as a complete session, defaulting apiUrl to the Cloud default and pinning a far-future expiry when no refresh token is present — the same defaulting as packages/agents/src/connect.ts:93-108. needsRefresh additionally returns false whenever the refresh token is empty, so this shape is used as-is and never rolled with an absent credential.
One correction to the finding's supporting claim, checked rather than assumed: this does not currently break relayfile's own CI. grep -rn CLOUD_API .github/workflows/ returns nothing — the Go job is actions/setup-go plus go test ./.... The finding stands on the contract in connect.ts and the integration docs, which is reason enough; the CI consequence is latent, not active.
Covered by TestCloudCredentialsAcceptAccessTokenOnlyEnvironment and TestAccessTokenOnlyEnvironmentNeverAttemptsARefresh (the latter asserts zero refresh attempts against a stub that would 401).
| if latest, err := readAgentRelayStoredAuthFile(); err == nil && latest.valid() && | ||
| latest.APIURL == auth.APIURL && !latest.needsRefresh(time.Now()) { | ||
| return latest, agentRelayCloudSessionFromFile, nil |
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If agent-relay cloud login replaces the credential file with a session for a different API URL after this process's initial read but before it acquires the lock, this condition rejects the new session and the subsequent refresh still uses the pre-lock auth, then overwrites the new login. The value re-read while holding the lock should become the refresh input whenever it remains valid but still needs refreshing, rather than retaining the stale pre-lock credentials.
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Valid — fixed in 2dacc4b, together with the same defect reported by CodeRabbit and cubic. The re-read record is now adopted whenever it is valid:
if latest, readErr := readAgentRelayStoredAuthFile(); readErr == nil && latest.valid() {
if !latest.needsRefresh(time.Now()) {
return latest, agentRelayCloudSessionFromFile, nil
}
auth = latest
}Your framing caught something the other two reports did not: the latest.APIURL == auth.APIURL guard meant a fresh login landing mid-wait was rejected and then overwritten, not merely a rotation. Dropping the comparison entirely is correct — we hold the lock, so the file is authoritative regardless of which API URL it names.
Regression test: TestCloudSessionRefreshAdoptsARotationThatLandedWhileWaiting. It seeds the lock, starts the caller so it reads the stale copy and blocks, rotates the file, then releases; the stub refresh endpoint 401s any token that is not the newest on disk, exactly as Cloud does. Verified must-fire: against the pre-fix ordering it fails with HTTP 401. Paired with TestCloudSessionSkipsRefreshWhenTheLockWaitProducedAFreshSession, which asserts zero refresh requests when the re-read session is already fresh.
| AccessToken: strings.TrimSpace(payload.AccessToken), | ||
| RefreshToken: strings.TrimSpace(payload.RefreshToken), | ||
| AccessTokenExpiresAt: strings.TrimSpace(payload.AccessTokenExpiresAt), | ||
| RefreshTokenExpiresAt: firstNonEmpty(strings.TrimSpace(payload.RefreshTokenExpiresAt), strings.TrimSpace(auth.RefreshTokenExpiresAt)), |
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When refresh is triggered because the stored refresh token is within its 24-hour window and the refresh response omits the optional refreshTokenExpiresAt, this preserves the old near-expired timestamp for the newly rotated token. Every subsequent command therefore considers the session stale and rotates the token again, causing unnecessary refresh traffic and increasing rotation races; the optional response field should not inherit the previous token's expiry.
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Valid — fixed in 2dacc4b. refreshTokenExpiresAt is no longer inherited from the previous token when the response omits it. Your reasoning is right and worth restating: the field describes a specific refresh token and the response carries a new one, so carrying the old expiry forward re-arms the 24-hour window immediately and every subsequent command rotates again.
Worth flagging, since this PR's premise is protocol fidelity: relay's own requestStoredAuthRefresh (packages/cloud/src/auth.ts:613-617) does inherit it. So this is a deliberate, documented divergence on correctness grounds rather than a fidelity miss, and relay has the same latent loop. Raised in #418, which tracks pinning this protocol with shared fixtures.
Covered by TestRefreshDoesNotInheritAStaleRefreshTokenExpiry, which drives a refresh from the refresh-token window against a server that omits the field, then asserts a second resolve issues no further refresh.
Relayfile Eval ReviewRun: Passed: 4 | Needs human: 0 | Reviewable: 0 | Missing output: 0 | Failed: 0 | Skipped: 0 Human Review CasesNo reviewable human-review cases captured Relayfile output. |
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Actionable comments posted: 9
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Inline comments:
In `@cmd/relayfile-cli/cloudauth_test.go`:
- Around line 203-205: Update the failure message in the rotated-token assertion
to report persisted.AccessToken and persisted.RefreshToken, matching the values
checked by the condition, instead of persisted.AccessTokenExpiresAt.
In `@cmd/relayfile-cli/cloudauth.go`:
- Around line 215-231: Update the deferred response-body cleanup in the refresh
flow around http.DefaultClient.Do to explicitly discard the error returned by
resp.Body.Close, preserving the existing response handling and error paths.
- Around line 296-310: Update the post-lock re-read flow around
readAgentRelayStoredAuthFile and refreshAgentRelayStoredAuth so any valid latest
session is assigned as the refresh input, even when
latest.needsRefresh(time.Now()) is true; retain the immediate return for a
valid, matching session that does not need refresh, and ensure
refreshAgentRelayStoredAuth uses the newest on-disk refresh token.
- Around line 69-79: Change agentRelayCloudAuthPath to return an error when
os.UserHomeDir fails instead of constructing a relative fallback path, and
propagate that error so callers report that the Agent Relay cloud session cannot
be located. Update agentRelayCloudAuthLockPath and all direct callers, including
the test helpers, to handle the new result while preserving the canonical
home-based path.
- Around line 162-191: Increase agentRelayAuthLockStaleAfter to a duration
comfortably longer than agentRelayCloudRefreshTimeout, ensuring a lock holder
waiting for the full refresh request cannot be reclaimed by
acquireAgentRelayAuthLock while still active.
In `@cmd/relayfile-cli/main.go`:
- Around line 1182-1191: Replace the version and workspace help probes in
ensureAgentRelayCLICompatible with exec.CommandContext using a short timeout,
preserving their existing output and error handling. Update runAgentRelayLogin
to use exec.CommandContext with a context appropriate for its interactive
browser flow, without applying the probe timeout.
In `@docs/cli-design.md`:
- Around line 42-50: Replace any bare agent-relay login references with
agent-relay cloud login in docs/cli-design.md lines 42-50 and
docs/productized-cloud-mount-contract.md lines 372-373; also make the same
replacement in docs/guides/vfs-cloud-setup.md. Preserve the existing
cloud-auth.json credential-file references.
- Around line 47-50: Update the credential-file description near the existing
agent-relay ownership note to clarify that agent-relay owns refresh only for the
self-hosted compatibility file, while the CLI refreshes the canonical Cloud
session through the Cloud API and writes the rotated credentials under the
shared lock.
Apply the same fix in `@docs/cli-design.md` at line 29: The same credential
precedence and refresh-ownership clarification applies to the productized cloud
mount contract.
In `@packages/cli/CHANGELOG.md`:
- Line 11: Update the changelog entry describing cloud session authentication so
it says the access token is refreshed when expiring or nearing expiry, rather
than only after it has expired; preserve the remaining credential-file,
environment-variable, endpoint, and lock behavior.
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cmd/relayfile-cli/cloudauth.gocmd/relayfile-cli/cloudauth_test.gocmd/relayfile-cli/main.gocmd/relayfile-cli/main_test.godocs/cli-design.mddocs/productized-cloud-mount-contract.mdpackages/cli/CHANGELOG.md
On the shape of this PR, not its correctnessRaised on review: why does relayfile refresh at all — why not refresh via the agent-relay SDK? That is the same concern the retired §5.2 clause was encoding, so it deserves an answer rather than a defence of the diff. Findings, with the checks behind them: There is no Go SDK. relay ships The broker cannot answer this today. relayfile must work with no broker. This repo's own CI is The cost of this PR, stated plainly: it puts the refresh window, rotate-on-refresh, write-back, and lock protocol into a second language, and two implementations of one protocol drift. That is real and it is what §5.2 was guarding. But the "never refresh" shape has already failed elsewhere. Drift control, filed rather than assumed: #418 proposes pinning the protocol with a shared fixture file asserted from both relay's TS tests and this repo's existing This PR stays as proposed. #418 carries the follow-up. |
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All reported issues were addressed across 7 files
Reply with feedback, questions, or to request a fix.
Re-trigger cubic
…resh timeout with relay Review findings on #417. Lost update (found independently by all three reviewers). The double-check after acquiring the auth lock re-read the credential file but then refreshed the PRE-LOCK copy. Cloud rotates the refresh token on every refresh, so if another process refreshed while we waited, the token we presented was already dead — and had it succeeded it would have overwritten the newer session. Adopt the re-read record whenever it is valid: we hold the lock, so the file is the authoritative session. This also handles a fresh `agent-relay cloud login` landing mid-wait, which the old APIURL guard rejected and then overwrote. Lock protocol. agentRelayAuthLockStaleAfter (30s) equalled the refresh timeout, so a live holder waiting on its HTTP call reached the staleness threshold exactly and could have its lock stolen mid-flight. The root cause was taking 30s from relayfile's TS SDK (DEFAULT_REQUEST_TIMEOUT_MS) instead of relay's DEFAULT_REFRESH_TIMEOUT_MS, which is 10s. Aligning to relay's constant restores relay's own 3x margin and keeps the stale window identical to relay's, so neither implementation can reclaim the other's lock. A test now pins the relationship. Access-token-only environments. CI commonly exports CLOUD_API_ACCESS_TOKEN alone. That is a complete session per packages/agents/src/connect.ts:93-108; requiring the full quartet made it fall through to an unrelated credential file or to "no session exists". needsRefresh now also refuses to refresh without a refresh token, so such a session is used as-is rather than failing. Rotated refresh-token expiry. When the server omits the optional refreshTokenExpiresAt, the previous token's value is no longer inherited: it describes a different token, and carrying it forward re-armed the 24-hour window so every subsequent command rotated again. Credential path. agentRelayCloudAuthPath returns an error instead of a relative fallback when the home directory cannot be resolved — a relative path would write rotated tokens into the working directory, invisible to agent-relay. Also: context-bounded CLI probes (a wedged binary previously hung every workspace call with no diagnostic), explicit resp.Body.Close discard, a login stub that stages its JSON from Go rather than interpolating it into shell, docs aligned with the actual precedence and write-back rules, `agent-relay login` corrected to `agent-relay cloud login` throughout docs, and CHANGELOG wording for preemptive refresh. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
1 participant
The defect
relayfile statuson chief-broker failed with expired creds andagent-relay CLI >= 8.7.0 required. Credentials were never the problem —auto-recovery was blocked, so a routine token expiry became an outage. Likely
the root cause of the 2026-08-12 Factory dispatch stall (stale
/githubprojection, repeated HTTP 401 "Token has expired").
Root cause: a name collision on
AGENT_RELAY_BIN. Across Agent Relay thatvariable names the broker binary:
relay packages/cli/src/cli/lib/client-factory.ts:64relay packages/harness-driver/src/broker-path.ts:243relay packages/sdk-py/src/agent_relay/client.py:76relayfile cmd/relayfile-cli/main.go:1160(before this PR)relayfile's Go CLI was the only reader treating it as the agent-relay CLI.
Every relay-spawned agent runs with
AGENT_RELAY_BIN=~/.local/bin/agent-relay-broker,so relayfile exec'd the Rust broker. The broker reports
11.5.4, passing the>= 8.7.0check, then answerscloud session --helpwitherror: unrecognized subcommand 'cloud'— which the probe reported as a CLIversion problem.
The fix
1. Cloud session auth no longer shells out. It uses the path that already
existed on the TypeScript side (
packages/agents/src/connect.ts,packages/sdk/typescript/src/cloud-token-provider.ts): read~/.agentworkforce/relay/cloud-auth.json(or theCLOUD_API_*environment),and refresh through Cloud's
/api/v1/auth/token/refreshwhen the access tokenis inside its window.
This is not a third credential path. It is relay's file
(
packages/cloud/src/types.ts:279), relay's endpoint(
packages/cloud/src/auth.ts:591), relay's 5-minute / 24-hour refresh windows(
types.ts:276-277), and relay'scloud-auth.json.lockmkdir-lock discipline,so a relayfile refresh and an
agent-relayrefresh cannot interleave. Rotatedpairs are written back at
0600because Cloud rotates the refresh token onevery refresh — keeping the new pair private would invalidate relay's copy. An
environment-supplied session is refreshed in memory only, never to disk.
A Go CLI can reach the existing implementation, so no alternative was needed.
2.
AGENT_RELAY_BINis no longer read for any purpose. Workspaceresolution still shells out (that surface has no file to read) and resolves its
binary from
RELAYFILE_AGENT_RELAY_BIN, elsePATH. No honest caller is takenhostage: the survey above shows nothing in the ecosystem ever set that variable
to a CLI.
3. The error message names what was probed and what failed — the argv, the
binary, and how the binary was resolved. The probe also no longer asks for a
cloudsubcommand, since relayfile does not use it.Before:
After:
4. Docs. §5.2 of the productized-cloud-mount contract said "Relayfile MUST
NOT refresh Cloud tokens itself". That clause is retired in this change rather
than left to outrank the new behaviour.
Regression tests — must-fire / must-not-fire
cmd/relayfile-cli/cloudauth_test.go. All exerciseAGENT_RELAY_BINpointingat a stub that copies the real broker (
--version→agent-relay-broker 11.5.4; every subcommand →unrecognized subcommand), withPATHemptied soa surviving shell-out cannot pass by reaching a real CLI.
MUST FIRE — fails on
origin/main@11f8d98, passes here:TestCloudCredentialsIgnoreBrokerShapedAgentRelayBinagent-relay CLI >= 8.7.0 required with `agent-relay cloud session --help` … (error: unrecognized subcommand 'cloud')— the production error verbatimTestAgentRelayBinaryNeverResolvesFromBrokerEnvVargot "/usr/local/bin/agent-relay-broker"MUST NOT FIRE — the change must not turn "not logged in" into success, or
break the supported override:
TestCloudCredentialsStillFailWithoutACanonicalSessioncloud-auth.jsonandagent-relay cloud login; must not mention8.7.0TestAgentRelayBinaryHonoursRelayfileOverrideRELAYFILE_AGENT_RELAY_BINstill selects the binaryTestAgentRelayCLIProbeDoesNotRequireCloudSubcommandcloudpasses the probePlus: incomplete-file rejection,
CLOUD_API_*precedence, refresh + rotationwrite-back with a
0600check, refused-refresh messaging, and the retargetedstale-CLI gate (
TestActiveWorkspaceRejectsStaleAgentRelayBeforeWorkspaceCommand)paired with
TestEnsureCloudCredentialsSucceedsWithStaleAgentRelayCLI, whichproves an old CLI no longer blocks cloud auth.
Verification
Live, on chief-broker, same broken environment, seconds apart:
go build ./...,go vet ./..., andgo test ./internal/... ./cmd/...allpass (13/13 packages). Checked 0.10.40 and 0.10.41: neither touched this — #415
edited
main.gobut only bounded integration control-plane auth latency; #414and #416 were mount/sync.
Base ref:
origin/main@11f8d98(v0.10.41).🤖 Generated with Claude Code