papyrus-deprecate

name	papyrus-deprecate
description	Atomic — mark a memory deprecated, optionally with supersedes link

papyrus-deprecate

Retire a memory. One operation: set status=deprecated. Optional by adds a supersedes link to the replacement.

Atomicity

• (a) Indivisible: status change (+ optional single link append)
• (b) Input: id + optional by. Output: deprecated need with link or unchanged if id missing
• (c) Objective reward: backend.find_by_id(id).status == Status.DEPRECATED AND (by absent OR any link is supersedes→by)
• (d) Reusable: every retirement flow
• (e) No interference: one memory, filelocked

Input / Output

input:
  id:   non-empty string
  by:   optional replacement id
output:
  side effect: status=deprecated; if by given, links gets one SUPERSEDES link
  stdout: "Deprecated <id>" (+ " (superseded by <by>)" if by given)
  exit: 0 on success

Success criterion

papyrus get <id>   # shows Status: deprecated; if by given, shows link supersedes → <by>

Workflow

MCP tool memory_deprecate:

{"id": "DEC_old", "by": "DEC_new"}

Composition examples

Supersession chain:

1. papyrus-write new DEC_v3 (the replacement)
2. papyrus-deprecate DEC_v2 with by=DEC_v3
3. Chain: DEC_v1 ← DEC_v2 ← DEC_v3 (active)

Pure retirement (no replacement):

1. papyrus-deprecate DEC_old (no by)
2. Readers see status=deprecated, no pointer to successor.

See also

• papyrus-write — create replacement before deprecating
• shared/link-types.md — supersedes semantics