[getappz]

Agent limits currently apply to individual subprocesses, so fan-out, retries and resumed workflows can each receive a fresh allowance. Add opt-in shared workflow budgets through the existing JSON/native workflow engine and headless hooks.

Budget configuration supports a dollar ceiling plus per-call reservation, an invocation reservation limit, and a wall-clock deadline. Reservations commit before dispatch in a separate transactional table in the existing workflow database. Independent connections share the balance, and step snapshots or recovery cannot refill it. Known unused cost is reconciled; missing/interrupted usage keeps its reservation. Work-item job retries cannot silently replace terminal or unavailable budgeted runs with new allowances. Budgeted runs carry versioned resume identities that older executors reject.

Reuse the current CLI, MCP, schedule/App send hooks, subprocess timeouts, workflow state/journal, and evidence reports. Claude launches receive the allocated cap while preserving stricter caller caps; unsupported dollar-budget providers and argument delimiters fail before launch. Queued launches recheck the deadline, and normal/loop/rollback executor timeouts are clamped. No new dependency or database file.

Move step retry execution into engine_execution.rs to keep the engine under the repository's file-size limit.

Also fix the existing Unix lease probe exposed by macOS master CI: only ESRCH proves a holder is gone. Permission denial or an unprobeable PID preserves the lease. Reuse the installed libc dependency and existing live-PID/dead-child recovery regression.

Provider-reported cost is an estimate, not a verified bill. Claude resumed totals include earlier calls, so resumed invocations retain their full reservations until per-call usage can be established. Zero-cost error receipts also remain unknown. See Claude cost tracking. Command/tool calls are not separately priced as provider sends; custom Rust send hooks must honor the allocation contract. Optional judge shadow calls are skipped for budgeted work items because their API cannot enforce an allocation.

Evidence-report PR #924 is merged. The refinement controller remains in draft PR #920.

Expired rollback deadlines now journal a failure for every affected compensation and still settle cancellation. A paused-run regression reproduced the error before the fix and passes afterward.

Validation:

• cargo test -p flare-workflow: 146 passed, including 12 shared-budget regressions.
• Root workflow/report test batch: 65 passed; native pipeline assembly batch: 10 passed.
• Final budget-focused root batch after identity changes: 15 passed (overlaps the batches above).
• Independent review completed; its confirmed deadline, argument-boundary and native policy findings are fixed and covered by regressions.
• Clippy for the two affected packages, all targets/features, with the repository warning policy: passed. cargo fmt --all --check and git diff --check: passed.

Deterministic fixtures cover independent connections, stale snapshots, retries, fan-out, loops, recovery, side effects after deadlines, changed native policies, automatic allowance resets, provider caps and report projection. The first ledger regression run reproduced $1.20 reserved against a $1 ceiling and stale-snapshot refill before the transactional fix. No paid agent calls or private transcript scans were performed.

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Opened by codex on i-flare-c997d745ae66 (flared:c997d745ae66) for item #756 via agentflare.

Summary by CodeRabbit

• New Features
  • Workflows can now use shared budgets with configurable cost, invocation, and elapsed-time limits. Budget reservations and reported usage are tracked across steps and resumes.
  • Budget-aware agent launches can apply supported provider cost caps and remaining-time limits. Workflow status and reports include budget details.
  • Budgeted runs validate their saved policy when resumed, and completed budgeted runs can return successfully without starting a new allowance.
• Bug Fixes
  • Budget exhaustion and elapsed-time limits stop further dispatches; budget errors bypass automatic work-item retries.

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📒 Files selected for processing: 2

• crates/flare-workflow/src/rollback.rs
• crates/flare-workflow/tests/shared_budget.rs

🚧 Files skipped from review as they are similar to previous changes: 2

• crates/flare-workflow/src/rollback.rs
• crates/flare-workflow/tests/shared_budget.rs

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📝 Walkthrough

The pull request adds optional workflow budgets for cost, invocation count, and elapsed time. It persists reservations and reported usage, applies limits during workflow execution and provider dispatch, checks budget policy when resuming runs, and exposes budget summaries in status and reports.

Changes: Shared workflow budgets

Layer / File(s)	Summary
Budget policy and runtime contracts crates/flare-workflow/src/types.rs, crates/flare-workflow/src/budget.rs, crates/flare-workflow/src/definition.rs, crates/flare-workflow/src/lib.rs	Adds budget limits, validation, ledger operations, runtime handles, and workflow-level configuration. Budget limits are included in run identity when configured.
Persisted reservation ledger crates/flare-workflow/src/store.rs, crates/flare-workflow/src/sqlite_budget.rs, crates/flare-workflow/src/sqlite_store.rs, crates/flare-workflow/tests/shared_budget.rs	Adds store operations and SQLite persistence for budget state. Tests cover concurrent reservations, reconciliation, invalid limits, overruns, and stale-state handling.
Budget-aware workflow execution crates/flare-workflow/src/engine.rs, crates/flare-workflow/src/engine_execution.rs, crates/flare-workflow/src/engine_lease.rs, crates/flare-workflow/src/engine_control.rs, crates/flare-workflow/src/engine_start_once.rs, crates/flare-workflow/src/loops.rs, crates/flare-workflow/src/rollback.rs, crates/flare-workflow/Cargo.toml, crates/flare-workflow/tests/shared_budget.rs	Initializes budget state for new runs, checks budget identity when resuming, and applies budget deadlines and handles during execution. Tests cover retries, recovery, and deadline cancellation.
Budget-aware provider dispatch crates/flare-workflow/src/budget_send.rs, crates/flare-workflow/src/json.rs, src/work_item_pipeline.rs, src/work_item_pipeline/pipeline_assembly_tests.rs, src/workflow.rs, src/workflow/budget_launch.rs	Connects invocation reservations to agent launches and usage reconciliation. Claude Code launch preparation applies supported cost caps and remaining time. Budgeted work-item resumes check run availability and policy before dispatch.
Budget status, reports, and documentation src/workflow.rs, src/workflow/report.rs, src/workflow/report_tests.rs, crates/flare-workflow/README.md	Adds budget summaries to workflow status and report data. A report test checks live ledger state and confirms that reading the report does not change the workflow database. Documentation describes configuration, enforcement, resumes, and reporting.

Priority: ➖ Normal

Estimated code review effort: 4 (Complex) | ~60 minutes

Change: Feature

Sequence Diagram(s)

sequenceDiagram
  participant budgeted_sender
  participant StateStore
  participant WorkItemPipeline
  participant budget_launch
  participant AgentProcess
  budgeted_sender->>StateStore: Reserve invocation and cost allowance
  StateStore-->>budgeted_sender: Return reservation allocation
  budgeted_sender->>WorkItemPipeline: Send invocation with allocation
  WorkItemPipeline->>budget_launch: Prepare arguments and timeout
  budget_launch-->>WorkItemPipeline: Return prepared launch
  WorkItemPipeline->>AgentProcess: Launch with prepared arguments
  AgentProcess-->>WorkItemPipeline: Return reply and usage
  WorkItemPipeline->>budgeted_sender: Return send result with recorded usage
  budgeted_sender->>StateStore: Reconcile reservation

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Merge Risk: ⚪ Minimal · up to ce95c

Expired rollback deadlines no longer prevent cancellation from completing. No merge-blocking issue is established for these changes.

Pre-merge checks: 4 · 1

Failed checks: 1 warning

Check name	Status	Explanation	Resolution
Docstring Coverage		Docstring coverage is 45.74% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 94 functions across 23 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

Passed checks: 4 passed

Check name	Status	Explanation
Description Check		Check skipped - CodeRabbit’s high-level summary is enabled.
Title check		The title clearly and concisely describes the primary change: enforcing shared workflow budgets.
Linked Issues check		Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check		Check skipped because no linked issues were found for this pull request.

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Actionable comments posted: 1

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• 🪄 Fix comments: Fix CodeRabbit comments on this PR

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Inline comments:
Review comments at @crates/flare-workflow/src/rollback.rs:
- Around line 161-166: In run_rollback_phase, handle errors from
budget.cap_timeout as a failure of the current rollback attempt instead of
propagating them with `?`; route the error through the existing rollback failure
path so it is journaled and the unwind continues.

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📥 Commits

Reviewing files that changed from the base of the PR and between 527ae24 and 7de5efe.

⛔ Files ignored due to path filters: 1

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📒 Files selected for processing: 25

• crates/flare-workflow/Cargo.toml
• crates/flare-workflow/README.md
• crates/flare-workflow/src/budget.rs
• crates/flare-workflow/src/budget_send.rs
• crates/flare-workflow/src/definition.rs
• crates/flare-workflow/src/engine.rs
• crates/flare-workflow/src/engine_control.rs
• crates/flare-workflow/src/engine_execution.rs
• crates/flare-workflow/src/engine_lease.rs
• crates/flare-workflow/src/engine_start_once.rs
• crates/flare-workflow/src/json.rs
• crates/flare-workflow/src/lib.rs
• crates/flare-workflow/src/loops.rs
• crates/flare-workflow/src/rollback.rs
• crates/flare-workflow/src/sqlite_budget.rs
• crates/flare-workflow/src/sqlite_store.rs
• crates/flare-workflow/src/store.rs
• crates/flare-workflow/src/types.rs
• crates/flare-workflow/tests/shared_budget.rs
• src/work_item_pipeline.rs
• src/work_item_pipeline/pipeline_assembly_tests.rs
• src/workflow.rs
• src/workflow/budget_launch.rs
• src/workflow/report.rs
• src/workflow/report_tests.rs

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[getappz]

Claiming self-repair for i-flare-c997d745ae66.