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ci: add reliable Agda job (version-matched agda-stdlib via git) #106

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hyperpolymath merged 1 commit into from
Jul 7, 2026
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ci: add reliable Agda job (version-matched agda-stdlib via git) #106

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37 changes: 29 additions & 8 deletions .github/workflows/proofs.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -48,14 +48,35 @@ jobs:
make -f Makefile.all -j"$(nproc)"
echo "✓ Coq: 14/14 theories compiled (CNO + OND)"

# NOTE: an Agda job was attempted but removed. Ubuntu's `agda-stdlib` package
# ships the sources without a usable library manifest, and the apt Agda/stdlib
# pairing on the runner would not resolve `standard-library` reliably across
# four different setups (register / -i include path / synthesized .agda-lib).
# Rather than ship a flaky red job, Agda is verified via the local/container
# gate `proofs/verify-all-provers.sh` (which type-checks CNO.agda + OND.agda).
# To re-add it, a pinned Agda toolchain (e.g. a Nix/setup-agda action with a
# matching agda-stdlib) is the reliable route — not apt.
agda:
name: Agda — CNO + OND
runs-on: ubuntu-24.04
timeout-minutes: 25
steps:
- uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v4
- name: Install Agda (binary only)
# Install just the `agda` binary (2.6.3 on 24.04). NOT `agda-stdlib` —
# the Ubuntu stdlib package ships no usable library manifest; we fetch a
# version-matched stdlib from git instead (validated locally).
run: sudo apt-get update && sudo apt-get install -y agda
- name: Fetch + register agda-stdlib v1.7.3 (matches Agda 2.6.3)
run: |
git clone -q --depth 1 --branch v1.7.3 \
https://github.com/agda/agda-stdlib.git "$HOME/agda-stdlib"
# The upstream manifest is named `standard-library-1.7.3`; the repo's
# absolute-zero.agda-lib depends on `standard-library`, so align it.
sed -i 's/^name: .*/name: standard-library/' \
"$HOME/agda-stdlib/standard-library.agda-lib"
mkdir -p "$HOME/.agda"
echo "$HOME/agda-stdlib/standard-library.agda-lib" > "$HOME/.agda/libraries"
echo "standard-library" > "$HOME/.agda/defaults"
- name: Type-check CNO + OND (--safe --without-K)
working-directory: proofs/agda
run: |
agda --version
agda --safe --without-K CNO.agda
agda --safe --without-K OND.agda
echo "✓ Agda: CNO + OND type-check"

z3:
name: Z3 — CNO + OND bounded checks
Expand Down