# Kernel Scheduler Credit Seed

Status: controlled scheduler credit metadata seed
Scope: report-only bridge from preemption decision metadata to scheduler credit intent.

## Purpose

This slice connects the preemption seed to deterministic scheduler credit metadata.

It does not update scheduler credits, write CPU usage, update quotas, read time, preempt execution, dispatch work, switch contexts, mutate run queues, wake processes, persist state, or touch hardware. It records candidate credit declarations that future scheduler work can refine behind explicit authority gates.

## Files

```text
include/latticra/kernel_scheduler_credit.h
src/kernel_scheduler_credit.c
tests/kernel_scheduler_credit.c
tools/kernel_scheduler_credit_report.c
scripts/test-kernel-scheduler-credit.sh
scripts/test-kernel-scheduler-credit-report-runner.sh
.github/workflows/kernel-scheduler-credit.yml
docs/KERNEL_SCHEDULER_CREDIT_SEED.md
```

## Current Posture

The default request evaluates the preemption seed and emits:

```text
credit_status=scheduler-credit-seed-ready
preemption_status=preemption-seed-ready
time_accounting_status=time-accounting-seed-ready
context_switch_status=context-switch-seed-ready
run_queue_status=run-queue-seed-ready
scheduler_tick_status=scheduler-tick-seed-ready
timer_source_status=timer-source-seed-ready
credit_count=4
no_effect=1
```

Authority remains denied:

```text
scheduler_credit_update_allowed=0
quota_update_allowed=0
cpu_usage_write_allowed=0
time_accounting_allowed=0
time_read_allowed=0
preemption_allowed=0
context_switch_allowed=0
dispatch_allowed=0
run_queue_mutation_allowed=0
process_wake_allowed=0
hardware_effect_allowed=0
host_effect_allowed=0
```

## Validation

Run:

```sh
sh scripts/test-kernel-scheduler-credit.sh
sh scripts/test-kernel-scheduler-credit-report-runner.sh
```

Expected output:

```text
kernel_scheduler_credit: ok
kernel_scheduler_credit_report_runner: ok
```

## Non-claims

This slice does not schedule execution, mutate run queues, perform context switches, read clocks, account CPU time, update quotas, update scheduler credits, preempt execution, wake processes, dispatch interrupts, perform I/O, boot hardware, or replace an operating system.