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goal
THIS UNIT SUPERSEDES #286 — it is the SAME module and the same work, re-filed to be
SELF-CONTAINED. The superseded unit named its source only as a `git cat-file` command
against the forge's bare repos, which the sandboxed pair_loop worker that executes these
tickets cannot run, so it could not be done as filed (#346; #259 is the proof). A ticket body
is permanent in SQL (tg_tickets_immutable_identity, migrations/0029_ticket_authorization
.sql:111-117), so that body could not be repaired — this ticket carries the fix instead, and
the original is halted by a stop ticket rather than erased. Do the work HERE.
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:34332ce930fbd478
(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 : 2480 bytes
EXTENSION : .py
CANONICAL SOURCE (the location this ticket is named for):
repo : code__code-invalid__coupler
path : coupler/bridge.py
ref : refs/heads/stable (as recorded when this module was first filed)
blob : 30599ce04c2676d150a809d4b08feb91b597f531 (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/code__code-invalid__coupler.git cat-file blob 30599ce04c2676d150a809d4b08feb91b597f531
THE SAME MODULE ALSO LIVES AT THESE FORGE TIPS — 2 copy/copies. They SHARE THIS
ticket: this module is rewritten ONCE, and every location below is satisfied by
that one rewrite. Do not file a ticket per copy.
coupler:coupler/bridge.py
gitlab__testmonkeyalpha__coupler:coupler/bridge.py
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/coupler:coupler/bridge.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 — 2480 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
"""
coupler/bridge.py — stdio ↔ SSE bridge. This is what Claude Desktop runs.
It never changes. When coupler/server.py restarts, this reconnects automatically.
If the server isn't up yet it retries every 2 seconds for 30 seconds before giving up.
Claude Desktop config:
command: python -m coupler.bridge
"""
import asyncio
import json
import os
import sys
from fastmcp import FastMCP
from fastmcp.client.transports import SSETransport
from fastmcp.server import create_proxy
PORT = int(os.environ.get("COUPLER_PORT", 7770))
RETRIES = 15 # 15 × 2s = 30s startup grace period
RETRY_S = 2.0
async def _wait_for_server() -> bool:
"""Spin until the coupler HTTP server is accepting TCP connections."""
for i in range(RETRIES):
try:
reader, writer = await asyncio.wait_for(
asyncio.open_connection("127.0.0.1", PORT), timeout=1.0
)
writer.close()
await writer.wait_closed()
return True
except Exception:
pass
print(f" bridge: waiting for coupler server on :{PORT} "
f"({i+1}/{RETRIES})…", file=sys.stderr)
await asyncio.sleep(RETRY_S)
return False
def main():
async def _run():
ready = await _wait_for_server()
if not ready:
# Server unreachable — stand up a minimal stub so Claude gets a
# useful message from coupler_status rather than "server disconnected"
print(f" bridge: coupler server unreachable on :{PORT} — "
f"serving degraded stub", file=sys.stderr)
stub = FastMCP("coupler-bridge")
@stub.tool()
def coupler_status() -> str:
"""Check which coupler services are available right now."""
return json.dumps({
"coupler": "down",
"message": (
f"coupler server is not running on port {PORT}. "
f"Start it with: python -m coupler.server"
)
}, indent=2)
await stub.run_stdio_async()
return
print(f" bridge: connected to coupler on :{PORT}", file=sys.stderr)
proxy = create_proxy(SSETransport(f"http://127.0.0.1:{PORT}/sse"))
bridge = FastMCP.as_proxy(proxy)
await bridge.run_stdio_async()
asyncio.run(_run())
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:
async _wait_for_server() -> bool
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.
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.
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.