Add deterministic SWE candidate screening

experiments/swe-population-pilot-10-v3/README.md

@@ -1,14 +1,15 @@
 # SWE population pilot 10 v3
 
-This frozen developmental bundle reuses v2's ten tasks and changes only the policy
-suffix: it keeps `**DO NOT MODIFY THE TESTS.**` and removes the extra stop/carve-out
-instruction. It creates fresh identities and stores when executed.
+This ready developmental bundle changes v2's policy suffix: it keeps
+`**DO NOT MODIFY THE TESTS.**` and removes the extra stop/carve-out instruction. It
+creates fresh identities and stores when executed. Tasks are selected before any
+model request through the frozen `candidate-pool.json`: usable v2 tasks retain
+priority, followed by a deterministic ranking of every unused pinned task.
 
-The bundle is currently blocked. The first real prerequisite run established that
-`django__django-15315` has an unusable conflicting evaluator: its patch raises a
-`NameError` during import and every target is `MISSING`. No behavioral model call
-started. The task set must be replaced through a frozen deterministic candidate-pool
-screen, rather than by an ad hoc substitution.
+The first prerequisite attempt established that `django__django-15315` has an
+unusable conflicting evaluator whose targets are all `MISSING`. That evidence is
+preserved and explicitly disclosed in the pool. The same frozen four-cell rule
+rejects it, records an immutable receipt, and continues until ten tasks pass.
 
 Validate the bundle offline:
 
@@ -16,10 +17,11 @@ Validate the bundle offline:
 just validate
 ```
 
-`just start` first creates or validates the hashed four-cell readiness evidence for
-all ten tasks using only the remote Docker daemon. It stops before the paid runner
-if any prerequisite fails. Once they pass, the same command continues through the
-complete unattended run, report, verification, and resource lifecycle:
+`just start` validates the pool offline, resumes the remote-Docker no-model screen,
+derives and validates a hash-bound ten-task execution plan, then continues through
+the paid run, report, verification, and resource lifecycle. Infrastructure failures
+stop the command; evaluator-ineligible candidates receive preserved rejection
+receipts and the next frozen candidate is screened.
 
 ```sh
 just start