docs: fix a wrong pointer and two stale claims in CONTEXT.md

Why: CONTEXT.md is an instructed every-session read, so a wrong assertion in it
is cited downstream without being checked. The b9c7762 rewrite introduced one
broken pointer and carried over two claims that were already false.

Implementation notes:
- The Preload tax entry pointed at docs/spec/gates.md for the measurement
  method. gates.md has no such method — it uses the 23,427-char figure once, in
  passing, without deriving it. The method and the current figure both live in
  ADR-0020, which is where a dated measurement belongs: it is superseded there
  deliberately, and issue #99 tracks its drift.
- Dropped the "~5,900 tokens across 39 skills" measurement rather than
  re-measuring it. It was already wrong three days after being written (~5,340
  today) and it was the only live number in the file. Every sibling entry is one
  definitional sentence plus a pointer fragment; this one now matches, and
  CONTEXT-FORMAT.md:43 asks for exactly that.
- Dropped "Written by the session-handoff skill or directly by the human" from
  the LESSONS.md entry. No session-handoff skill exists — LESSONS.md:7 records
  it as planned work. Who writes a file is not its definition.

Impact: removes the only rot surface in the file and the only assertion in it
that names an artifact the repo does not have.

Refs: #99
This commit is contained in:
2026-08-17 10:06:26 +00:00
parent b9c7762463
commit b93af30750

View File

@@ -16,8 +16,8 @@ decisions.
**Preload tax**:
The always-on context cost of every installed skill's `name` and `description`, charged from the
first token of every session whether the skill is invoked or not. Measured 2026-08-14 at ~5,900
tokens across 39 skills; method in `docs/spec/gates.md`.
first token of every session whether the skill is invoked or not. Measurement method and current
figure: ADR-0020.
_Avoid_: context cost, token overhead
**Skill context contract**:
@@ -114,8 +114,7 @@ content of its own (ADR-0002, ADR-0003).
_Avoid_: wrapper, shim, provider file
**LESSONS.md**:
The long-loop feedback log for patterns observed across sessions, at the repo root. Written by the
session-handoff skill or directly by the human.
The long-loop feedback log for patterns observed across sessions, at the repo root.
_Avoid_: changelog, retro, postmortem
**Management Application**: