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Rewrite ONE unique forge module as entirely new, behavior-preserving, installable, control-config'd Python, per the FORGE-wide refactor standard #200 (#std). This ticket covers ONE module — the one identified below — and nothing else. It was filed against the module's DEDUPLICATED identity, so if that module was copy-pasted across the forge, every copy is covered by this single ticket. MODULE KEY : forge-rw:3eee6b350ba55100 (the ticketer's idempotency marker — it lives in this ticket's TITLE. Do not edit the title, or the module will be re-filed as a duplicate.) IDENTITY : AST-NORMALIZED — codebean's `_ast_norm` (#183), i.e. ast.dump(ast.parse(ast.unparse(ast.parse(src)))). Copies of this module that differ only in comments, blank lines, quoting or spacing carry the SAME module-sha and are covered by THIS ticket. A differing docstring is real content, so a module whose docstring differs is a DIFFERENT module with its own ticket. SIZE : 2802 bytes EXTENSION : .py CANONICAL SOURCE (the location this ticket is named for): repo : agent_tools_suite path : imgd_service.py ref : HEAD (HEAD) blob : b69b16d02ceb5c3b1f718d6bef4b93604c4e82f0 (git blob sha1) REFERENCE ONLY — you do NOT need this command. This module's bytes are embedded COMPLETE in THE ORIGINAL SOURCE block below, and that is what the rewrite is based on. For a reader who does have forge access: git --git-dir=/Users/stevenpeterson/code/installed/jazz-project/config/forge/remotes/agent_tools_suite.git cat-file blob b69b16d02ceb5c3b1f718d6bef4b93604c4e82f0 THE SAME MODULE ALSO LIVES AT THESE FORGE TIPS: none — this module is unique to agent_tools_suite among the repos scanned so far. HISTORICAL OCCURRENCES of this exact blob — every OTHER DISTINCT {repo, path} the omni-git index (`occ`, joined on the git blob sha1) records this byte-identical file at, with the index's own `ts` for the first row of each. Any place this run enumerated LIVE is listed under the forge tips above, not here. Context for the rewrite, not extra work: testmonkeyalpha-group/jazz-forge/agent_tools_suite:imgd_service.py [occ.ts gitlab] THE ORIGINAL SOURCE, EMBEDDED — YOU NEED NO FORGE ACCESS TO DO THIS TICKET. The module's own bytes are reproduced below, inside this ticket. THEY are the authoritative copy and the behavior-preserving basis: rewrite from them. The `git --git-dir=... cat-file blob` command under CANONICAL SOURCE above is kept only as a REFERENCE for a reader who happens to have forge access — running it is NOT part of this ticket. (Why the bytes are here at all: the pair_loop worker that executes this ticket is sandboxed to the ticket's own congruency worktree and cannot read the forge's bare repos. Ticket #346 is the fix that put them on the ticket.) The block BEGINS at the line ===ORIGINAL SOURCE (verbatim, the behavior-preserving basis)=== and ENDS at the first line ===END SOURCE=== Everything strictly between those two lines is the module — 2802 byte(s), byte for byte, with no re-indentation, no re-wrapping and nothing elided. ===ORIGINAL SOURCE (verbatim, the behavior-preserving basis)=== #!/usr/bin/env python3 """imgd_service — start/stop the pi-image service as a plain user process, at your discretion. python3 imgd_service.py on # start imgd in the background python3 imgd_service.py off # stop it python3 imgd_service.py status # running? serving? verbs? Mirrors crankd_service.py / ats_service.py. Not a daemon — it runs only while you want it. """ import json import os import signal import subprocess import sys import urllib.error import urllib.request HERE = os.path.dirname(os.path.abspath(__file__)) PYTHON = os.path.join(HERE, ".venv", "bin", "python") # the jail's own venv, beside this script SERVER = os.path.join(HERE, "imgd.py") PIDFILE = os.path.expanduser("~/bin/config/ats/imgd.pid") LOGFILE = os.path.expanduser("~/bin/config/ats/imgd.out.log") URL = "http://127.0.0.1:8813/health" def read_pid(): """The pid in PIDFILE if that process is alive, else None (clearing a stale pidfile).""" try: pid = int(open(PIDFILE).read().strip()) except (OSError, ValueError): return None try: os.kill(pid, 0) # signal 0 is a liveness probe; it does not touch the process except OSError: os.remove(PIDFILE) return None return pid def health(): """imgd's /health payload, or None if unreachable.""" try: with urllib.request.urlopen(URL, timeout=3) as r: return json.loads(r.read().decode() or "{}") except (urllib.error.URLError, OSError): return None def on(): running = read_pid() if running: print(f"already running (pid {running})") return os.makedirs(os.path.dirname(PIDFILE), exist_ok=True) logfile = open(LOGFILE, "a") process = subprocess.Popen( [PYTHON, SERVER], stdout=logfile, stderr=subprocess.STDOUT, start_new_session=True, # detach so imgd outlives this launcher ) with open(PIDFILE, "w") as handle: handle.write(str(process.pid)) print(f"started (pid {process.pid})") def off(): pid = read_pid() if not pid: print("not running") return os.kill(pid, signal.SIGTERM) os.remove(PIDFILE) print(f"stopped (pid {pid})") def status(): pid = read_pid() info = health() print(f"process : {f'running (pid {pid})' if pid else 'stopped'}") if info is None: print("endpoint: not reachable") else: print(f"endpoint: serving — verbs={info.get('verbs')}") COMMANDS = {"on": on, "off": off, "status": status} def main(): command = sys.argv[1] if len(sys.argv) > 1 else "status" action = COMMANDS.get(command) if action is None: sys.exit("usage: imgd_service.py [on|off|status]") action() if __name__ == "__main__": main() ===END SOURCE=== THE CALLABLE SURFACE — every callable in the original, lowered with codebean's `lower_node` (#183). The rewrite must present THIS surface (same names, same parameters, same defaults) so callers of the original keep working: read_pid() health() on() off() status() main() CAPTURED BEHAVIORAL EXEMPLARS: none. no function in this module is minable — criteria_miner mines only self-contained pure functions (it refuses anything that mentions a world-touching or non-deterministic name, plus methods and no-arg functions), and nothing here qualified This does NOT weaken the ticket's bar — it MOVES the work: you must write the equivalence exemplars by hand from the original's behavior before rewriting, and they are what settles this ticket. THE STANDARD — #200's four requirements, which this ticket exists to enforce. All four are the standard's own words; none is optional: 1. BEHAVIOR-PRESERVING, VERIFIED NOT ASSERTED — the deliverable is ENTIRELY NEW source code (rewritten, not copied). It must reproduce the ORIGINAL's behavior, and the proof is the exemplars above (captured via codebean lower_* #183 + criteria_miner IO-exemplars, exactly as #200 specifies). 2. A PYTHON MODULE — regardless of the source language. This module's source is `.py`; the rewrite is Python either way. 3. INSTALLABLE — a proper package: pyproject.toml, `pip install -e .` works, console entry points where applicable. WRITE ONLY YOUR OWN MODULE FILE at forge2/<repo>/<module>.py. Do NOT hand-author pyproject.toml or __init__.py: the harness DERIVES them ADDITIVELY from the modules present (congruency/tools/ forge_package.py, #410 — the analogue of the tag-registry fix #281), so your unit never conflicts with, or clobbers, a sibling module of the same forge2/<repo>/ package. A package-level pyproject includes every .py in the directory, so your module installs and imports as `<repo>.<module>` the moment it lands. 4. CONTROL-CONFIG'D — NO hardcoded paths or params. A JSON/registry config object drives it (the install.json / registry.json idiom of this repo), and per note-for-claude a tool that cannot see its config THROWS rather than guessing a default. Add ONLY your own `forge2.<repo>.<module>` section to the package's registry.json (create the file if it is absent); NEVER read, edit or drop a sibling module's section — the sections are disjoint keys and stay additive that way. ACCEPTANCE (#200's, per rewrite ticket) — this ticket settles when ALL of: a. the new source reproduces every captured exemplar above, plus the edge cases you add for what sampling cannot reach (paste the runs as evidence); b. it presents the callable surface above, so existing callers keep working; c. `pip install -e .` installs it clean from its own pyproject.toml; d. it runs off a config object with ZERO hardcoded settings, and throws without one. Kind is `build` (a pair: coder + adversarial tester). This ticket hangs off #200 by a `spawned` edge, so a stop ticket aimed at #200 brakes every rewrite in this programme. Filed mechanically by checkouts/current/congruency/tools/forge_refactor_ticketer.py under ticket #201, from the forge bare repos at /Users/stevenpeterson/code/installed/jazz-project/config/forge/remotes. Its original source is embedded above (#346), so this ticket is complete on its own.

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