git:20261101.c52fe90 to git:20261105.fa48118

3 added, 1 removed. Audit A to A.

# Installed native readiness action contract

[README.md](README.md) describes prerequisite ordering. This action is a hosted

Ubuntu preparation step, called after checkout, pinned source fixtures and

Python/uv setup. Its `prepare-lean` input accepts only `true` or `false` and

defaults to `true` for complete native roles. The Code diagnostic explicitly uses

- `false`; it does not exercise Lean. This action has no acceptance outputs. Java and EPUBCheck

+ `false`; it does not exercise Lean. `project-scopes` forwards the exact locks to

+ warm beside Root and defaults to empty, which keeps Root-only warming for callers

+ that install nothing else. This action has no acceptance outputs. Java and EPUBCheck

nominations are exported as `TEMPLATE_NATIVE_JAVA` and

`TEMPLATE_NATIVE_EPUBCHECK` for the caller's explicit tool arguments.

Preserve Root `uv.lock`, Source package/tool pins, upstream licenses and existing

local setup actions. Do not combine independent project locks or use a cache,

path or tool label as provider authority. Cache warming precedes the cold

operation. Complete native roles retain the original 14400-second deadline;

the incomplete Code diagnostic retains its bounded 1800-second deadline. All later

provider/Code/native predicates belong to the genuine installed launcher and

reader. Preparation establishes no claim that either operation fits its clock.

Retain genuine preparation failures. Keep temporary cache-warming cleanup

restricted to the action's own `mktemp` destinations. This action does not clean

shared source, runtime aliases or acceptance evidence. The same preparation must

serve originals, readers and handoff under the

[required workflow](../../workflows/platform-required-acceptance.yml) and

[release workflow](../../workflows/release.yml).

Maintain the [parent action contract](../AGENTS.md), the local doc pair and

resolving links. Run actionlint after action edits; complete docs and release

acceptance remain caller-owned gates.