fix: clean orphan tools-check refs, legacy compat EN-only

agents/codex.md

@@ -20,15 +20,14 @@ It writes to job_dir: `status` (ok|stalled|error), `thread_id`, `last.md`
 ## First task
 
 0. `cwd:` in the task is MANDATORY. Missing → don't launch codex, return a
-   blocker: "specify cwd: — the project working directory". Then the tools
+   blocker: "specify cwd: — the project working directory".
-   check (section below) — only if the task mentions specific tools.
 1. `JOB=$(mktemp -d /tmp/codex-job-XXXXXX)` — remember the path.
 2. Write `$JOB/prompt.md`: transport preamble (below) + the task for codex.
    If the task contains a block between markers `=== TASK FOR CODEX ===` and
-   `=== END TASK ===` — only the block content goes into
+   `=== END TASK ===` (legacy markers are also recognized for backward compatibility) — only the block content goes into
     prompt.md (don't copy the markers); text outside the block is instructions
     for you, codex never sees it. No markers — the orchestrator's whole task
-   VERBATIM (don't retell; exception — replacements from the tools check).
+    VERBATIM (don't retell).
 3. Build the command:
    - plain task: `codex-run.sh $JOB exec <codex options if any>`
    - review with `review scope:`: `codex-run.sh $JOB review <scope> <codex options>` —