Files
AILang/experiments/2026-05-12-cross-model-authoring/master/tasks/t1_add_three.reference.ail.json
T
Brummel fe1fb6b4f0 iter cma.2: harness binary + 4 tasks + reference solutions + 4 integration tests
Sibling standalone Cargo crate `harness/` under
experiments/2026-05-12-cross-model-authoring/ (out-of-workspace
idiom carried forward from cma.1 verbatim). Six modules:
strip_locations (regex pass for form-asymmetric location info,
calibrated against five real `ail check`/`ail parse` stderr
captures), pipeline (subprocess wrapper for parse|check|build +
5s-timeout exec; preflight on ail+clang), ionos (blocking reqwest
client + retry policy per spec), mock (canned-response loader),
scoring (CSV + summary.md), tasks (definition struct + loader).
main.rs ties them into the per-(cohort,task) loop with budget
accounting and per-turn artefact recording.

Four MVP tasks land with reference solutions that compile, build,
and execute green through the actual ail+clang pipeline:
t1_add_three (chained `+` + io/print_int), t2_length (polymorphic
List + recursion), t3_main_prints (minimal IO module), t4_count_zeros
(prelude Eq Int + branched if). Reference solutions stay in canonical
AILang form — param_modes is omitted when every parameter is the
Implicit default, consistent with the existing examples/ corpus.

13/13 tests green: 5 lib unit (strip_locations) + 5 integration
(strip_locations against verbatim captured fixtures) + 1
verify_references (drives every reference through the real
ail+clang pipeline) + 1 mock_full_run (full eight-row sweep with
mixed green-on-turn-2 + turn-limit cycles) + 1 budget_abort
(synthetic budget exhaustion with budget_abort rows + run_status).

Two implementer-phase repairs beyond the plan, both small and
surfaced in the iter journal Concerns:
1. pipeline.rs renames the program file to `<module-name>.ail.json`
   between parse and check because `ail check` enforces filename
   stem == module name (compiler contract the plan did not anticipate).
2. main.rs fills synthetic budget_abort rows for tasks the outer
   loop never reached so scores.csv preserves the expected eight-row
   shape on budget exhaustion.

One plan/text mismatch carried over: README "Total 8 passed" reflects
the plan's four-suite count; actual sweep produces 13. Doc-fix
candidate for cma.3.

cma.3 (live IONOS run + DESIGN.md addendum + roadmap edits) remains
out of scope.
2026-05-12 12:06:34 +02:00

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{
"schema": "ailang/v0",
"name": "t1_add_three",
"imports": [],
"defs": [
{
"kind": "fn",
"name": "add_three",
"type": {
"k": "fn",
"params": [
{ "k": "con", "name": "Int" },
{ "k": "con", "name": "Int" },
{ "k": "con", "name": "Int" }
],
"ret": { "k": "con", "name": "Int" },
"effects": []
},
"params": ["a", "b", "c"],
"body": {
"t": "app",
"fn": { "t": "var", "name": "+" },
"args": [
{ "t": "var", "name": "a" },
{
"t": "app",
"fn": { "t": "var", "name": "+" },
"args": [
{ "t": "var", "name": "b" },
{ "t": "var", "name": "c" }
]
}
]
}
},
{
"kind": "fn",
"name": "main",
"type": {
"k": "fn",
"params": [],
"ret": { "k": "con", "name": "Unit" },
"effects": ["IO"]
},
"params": [],
"body": {
"t": "seq",
"lhs": {
"t": "do",
"op": "io/print_int",
"args": [{
"t": "app",
"fn": { "t": "var", "name": "add_three" },
"args": [
{ "t": "lit", "lit": { "kind": "int", "value": 1 } },
{ "t": "lit", "lit": { "kind": "int", "value": 2 } },
{ "t": "lit", "lit": { "kind": "int", "value": 3 } }
]
}]
},
"rhs": {
"t": "do",
"op": "io/print_int",
"args": [{
"t": "app",
"fn": { "t": "var", "name": "add_three" },
"args": [
{ "t": "lit", "lit": { "kind": "int", "value": 10 } },
{ "t": "lit", "lit": { "kind": "int", "value": 20 } },
{ "t": "lit", "lit": { "kind": "int", "value": 30 } }
]
}]
}
}
}
]
}