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Thread transfer impact✅ Thread transfer remains within every enforced ceiling.
Baseline: Scenario and decoded snapshot size10 historical turns, 5 command tools per turn, 878.9 KiB retained MCP result per historical turn, and a 1.05 MiB retained result in the measured turn.
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Limit details: You’ve used all 10 included reviews currently available. 📝 WalkthroughWalkthroughClaude capability probes now use a server-wide cache keyed by binary path, home path, working directory, and instance environment. The Claude driver uses this cache for status checks and invalidates matching inputs during reset-credit handling and explicit cache invalidation. The server runtime provides the cache service. ChangesClaude Probe Cache
Priority: ➖ Normal Estimated code review effort: 3 (Moderate) | ~20 minutes Change: Bug fix Sequence Diagram(s)sequenceDiagram
participant ClaudeDriver
participant ClaudeProbeCache
participant probeClaudeCapabilities
ClaudeDriver->>ClaudeProbeCache: Request capabilities for probe input
ClaudeProbeCache->>probeClaudeCapabilities: Probe with binary path, home path, cwd, and environment
probeClaudeCapabilities-->>ClaudeProbeCache: Return probe result
ClaudeProbeCache-->>ClaudeDriver: Return capabilities
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- 🪄 Fix CodeRabbit comments on this PR
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In `@apps/server/src/provider/Drivers/ClaudeProbeCache.test.ts`:
- Around line 134-135: Replace the single Effect.yieldNow in this test with a
bounded wait until query.mock.calls reaches three, failing on timeout; then keep
the exact-count assertion and existing release-and-join flow.
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apps/server/src/provider/Drivers/ClaudeDriver.tsapps/server/src/provider/Drivers/ClaudeHome.test.tsapps/server/src/provider/Drivers/ClaudeHome.tsapps/server/src/provider/Drivers/ClaudeProbeCache.test.tsapps/server/src/provider/Drivers/ClaudeProbeCache.tsapps/server/src/provider/Layers/ClaudeProvider.tsapps/server/src/provider/Layers/ProviderInstanceRegistryLive.test.tsapps/server/src/provider/Layers/ProviderRegistry.test.tsapps/server/src/provider/ProviderDriver.tsapps/server/src/server.ts
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ApprovabilityVerdict: Not approved Macroscope's review found this PR not approvable — The PR introduces a server-wide cache that changes how existing Claude instances share authentication-sensitive account metadata and usage results, including freshness and invalidation behavior. Because this is a default production runtime change spanning instances, it merits human review. You can add or adjust custom eligibility rules. Learn more. |
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- 🪄 Fix CodeRabbit comments on this PR
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Inline comments:
In `@apps/server/src/provider/Drivers/ClaudeProbeCache.ts`:
- Line 71: Update the TTL selection in the Claude probe cache callback to use
FAILED_PROBE_TTL when exit.value.usage is undefined, even if the probe returned
a defined result; retain the result’s account and command data. Keep PROBE_TTL
for successful results that include usage and preserve the existing failure
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…es probe Each Claude instance had its own private capabilities cache, so 30 instances on 9 homes ran 30 SDK probes, and they all started at once. Add a server-wide ClaudeProbeCache service. It owns one cache keyed by the full probe input (binary path, home path, cwd, and the instance env vars). The lookup gets only that input, so the probe cannot read anything the key leaves out. A 3-permit gate limits SDK probes that run at once across all instances; the probe's own timeout stays inside the gate. Successful results keep 5 min. Failed probes keep only 30 s, because a failure now marks every sibling on that home as unverified. invalidateCaches and the reset-credit re-probe drop the entry for that input only. Behavior change: sibling instances on one home now see one shared probe result, so their usage values can be up to 5 min old for a sibling. Codex, the version check, and refreshAll concurrency are unchanged. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Add a test that the shared probe cache runs at most 3 SDK probes at once. It fails when the gate is widened. Reword the ClaudeDriver header: instances share one probe only when the whole probe input matches, not just the home. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
The cache capacity was 64. Effect's Cache evicts the least recently used key, and each refresh reads the keys in the same order. So with 65 or more probe inputs, every read evicted a key the next refresh needed, and every refresh re-probed every instance. Raise the cap to 1024 and add a test that 100 inputs stay cached across two refreshes. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Knip flags the exported make as unused. The layer is the only consumer. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Mark make @public, as resetCreditCoordinator and other service modules do, so knip and the service conventions agree. Say the probe key holds every instance input, not everything the probe reads, and group the test import with the other driver imports. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
…seconds Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
…rate probes Both resolve to ~/.claude, but an explicit CLAUDE_CONFIG_DIR is a separate login to the CLI. Pin this so a later key normalization cannot merge them. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
…hout a gate Usage limits now carry the time the probe read them, not the time of the status check that reused a cached probe. A cached read that is older than the published limits (for example a turn's update) no longer replaces them. Remove the 3-probe gate. Sharing already runs one probe per distinct input, and with about 8 s per probe the gate made status for 9 homes take about 24 s instead of about 8 s. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
…at probe failure backs off A check that reads a cached Claude probe kept the published limits whole, so it also kept the old reset credit list instead of the credits it just read. It now keeps the published windows and takes the fresh credits. A failed probe or usage read retried after 30 s every time, so a signed-out input probed on every 1 min check. Only the first failure in a row retries after 30 s now. A repeat failure waits 5 min, like a success. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
The set of inputs whose last probe failed only shrank on a later success, so failed inputs from old instance configs stayed forever. It now clears when it reaches the cache's cap. A clear costs each input one early retry. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
…annot start a failure streak A new or edited Claude instance drops a sibling's finished probe for its input, so it starts from its own probe as it did before the cache was shared. It still joins a probe in flight, so instances created together at boot share one. Each probe now writes only its own failure record, so a probe that invalidate replaced cannot mark its input as failing after a newer probe succeeded. Adds a registry test for the driver wiring: two instances with the same home and env run one SDK probe, one with different env runs its own, and an edited instance probes again. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
…Cache The shared cache had grown a failure-streak map, split failure TTLs, a dropFinished step for new instances, and a cached-read rule in resolveUsageLimitsAfterProbe that every provider went through. None of that is needed to stop instances on one home from each running their own probe. ClaudeProbeCache is now one server-wide Effect Cache keyed by the narrowed probe input. Each entry keeps 5 minutes, a failed probe included, like the old per-instance cache. Explicit refresh and the reset-credit re-probe still invalidate the key. Usage limits keep the check time, as on main. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Before the shared cache, a config edit rebuilt the instance with an empty cache, so it probed at once. Now create drops the shared entry for its input when that entry already finished. An in-flight probe is joined, so instances that start together at boot still run one probe per input. Tests: a rebuild after the probe finished runs a fresh probe, an instance added while a probe is in flight joins it, and a reset re-probe reaches siblings on the same input. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
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Each Claude instance had its own private capabilities cache, so instances on the same Claude home never shared a probe. The slowdown report had 30 Claude instances on 9 homes: a full refresh started 30 SDK probes where 9 would do, and the report saw 21 probe processes at once (about 2.9 GB).
Fix
ClaudeProbeCacheservice: a single EffectCache(5 min TTL, 256 entries), provided next toResetCreditCoordinator.invalidateCaches) and the reset-credit re-probe drop the entry for that input, so siblings on it re-probe too.Tradeoff
A failed probe is cached for sibling instances for 5 min, the same TTL main already uses per instance. Siblings run the same binary, home, and env vars, so in practice their probes fail together anyway. Refresh re-probes at once.
Verification
ProviderInstanceRegistryLive.test.tscase runs the real registry with three Claude instances: two with the same input run one SDK probe (also when the second starts mid-probe), one with other env vars runs its own, andinvalidateCachesand a rebuild each re-probe once. It fails ifinvalidateCachesdoes nothing.vp test runon the provider registry, Claude home, capabilities probe, managed provider, and usage limit tests (86 pass).vp lint,vp fmt, andvp run --filter t3 typecheckpass.Made by Claude Opus 5.5 (1M context) in Claude Code, running in T3 Code.
🤖 Generated with Claude Code