Install the codex CLI into codex task images (M3.4: the codex base variant) - #388
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…riant) `build_base(agent_cli="codex")` built the same claude-only Dockerfile and merely re-tagged it `panopticon-base-codex`, so no codex task container had a `codex` binary and every codex task failed at launch. This wires the missing base tier (ADR 0014 §4). - Parameterize the bundled Dockerfile with an `AGENT_CLI` build arg (`claude` default, or `codex`): only the selected CLI is installed, so one Dockerfile yields two genuinely different `panopticon-base-<cli>` images. - Install codex as the statically-linked musl binary from GitHub releases (no node/npm), pinned via a `CODEX_VERSION` arg (0.144.4), with an arch switch for x86_64/aarch64, to `/usr/local/bin/codex` (0755, world-executable). - `images.py` passes `--build-arg AGENT_CLI=<cli>` from the resolved CLI in both `build_base` and `build_base_if_missing` (factored into one helper). - `make build` grows a per-CLI loop (`AGENT_CLIS`), building both bases by default. - Fix the codex `primary` model tier: `gpt-5.6-sol` (verified against the pinned release), not the earlier unverified `gpt-5.6-codex` guess. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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Why
build_base(agent_cli="codex")built the same claude-only Dockerfile and merely re-tagged itpanopticon-base-codex, so no codex task container had acodexbinary — every codex task failed at launch. This wires the missing per-CLI base tier that ADR 0014 §4 committed to, closing the dropped M3.4 slice.What
AGENT_CLIbuild arg (claudedefault, orcodex). Each CLI's install is gated on the arg, so one Dockerfile yields two genuinely differentpanopticon-base-<cli>images that carry exactly their own runtime.CODEX_VERSIONarg (0.144.4— the release the codex adapter's behavior is verified against), with an arch switch forx86_64/aarch64, landing at/usr/local/bin/codex(0755, world-executable so the droppedpanopticonuser can exec it).images.pypasses--build-arg AGENT_CLI=<cli>from the resolved CLI in bothbuild_baseandbuild_base_if_missing(factored into one_build_basehelper).CODEX_VERSIONstays host-side in the Dockerfile, honoring the rule that the runner never imports the container package.make buildgrows a per-CLI loop (AGENT_CLIS ?= claude codex), building both bases by default.primarymodel tier togpt-5.6-sol(verified against the pinned release), replacing the earlier unverifiedgpt-5.6-codexguess.Design choice: this follows ADR 0014 §4's committed base-variant approach (
panopticon-base-<cli>), not the reference repo's CLI-image-tier — the base infrastructure (base_image(cli), per-CLI tag/mount) already exists here, and the tier approach would need an ADR amendment.