fix(issue): sharpen rule 4 into a tracker-reachability test

Rule 4 ("Self-contained") forbade dangling pointers by example only, so
a reference reachable only through the producing chat slipped past it --
e.g. a shipped comment "Approach B (the mechanism refinement decided +
logged above)", whose "logged above" names no resolvable entry and whose
"Approach B" indexes an A/B fork the entry never reproduces.

Reframe rule 4 around one test: a reference is valid iff a reader who
lands on the entry alone (e.g. via a direct comment-anchor link) can
follow it to its target. A survey of the live tracker (63 issues / 96
comments) found 56 violations in six classes, now each named as an
unreachable form: chat references, weak intra-thread pointers
("above" / "logged above"), artifacts named by role, out-of-repo paths,
bare un-glossed codes, and locator-shaped tokens that resolve to nothing.
Carve-outs keep inline quotations, #N / SHA / URL / repo-path locators,
glossed codes, and restated forks legitimate. The constructive escape
hatch (log a chat decision to the tracker first, then cite that comment)
cross-references boss "The reference issue".

Align the Common-mistakes table, the Red-flags STOP gate, and the boss
cross-reference. Prescribe a comment's full URL rather than a bare
#issuecomment-NNNN fragment, which is not auto-linked on Gitea and so
does not itself satisfy the test.

Existing tracker entries are left unedited; the rule governs future
writing only.

issue/SKILL.md

@@ -70,16 +70,76 @@ These apply to every issue, on create and on edit.
    - Avoid: "parser bug" / "There is a problem with the parser."
    - Use: "Preserve backslash escapes in quoted strings"
 
-4. **Self-contained.** The issue is understandable on its own,
-   without the originating conversation. Every reference resolves
-   directly for any reader — an issue/PR number (`#42`), a commit
-   SHA, a full URL, or a path that exists in the repo. No dangling
-   pointers ("as discussed", "see the spec") and no tags, codes, or
-   acronyms that need outside knowledge to resolve; spell them out or
-   link them.
-   - Avoid: "Fixes the regression from the ledger refactor; see the
-     spec."
-   - Use: "Fixes the regression behind `#38`, introduced in `a1b2c3d`."
+4. **Self-contained — the reachability test.** The issue stands on its
+   own, without the conversation that produced it. Apply one test to
+   every reference: *starting from this entry alone — a reader may have
+   arrived by a direct comment-anchor link, no chat and no sibling
+   comments loaded — can they follow it to its target?* If not, it is a
+   dangling pointer: reproduce the content inline, or swap in a
+   resolvable locator.
+
+   **Reachable — use these:** content stated or quoted inline; an
+   issue/PR number (`#42`, or cross-repo `Skills #11`); a commit SHA
+   (`a1b2c3d`, resolves on push); a full URL; a repo-relative path,
+   optionally with a line range (`parser.rs:84-90`); another comment by
+   its full URL (the link ending `#issuecomment-NNNN` — the bare fragment
+   only resolves in-page on that comment's own issue); a same-entry
+   section marker (`§5`); a convention-resolvable in-repo slug (a
+   `docs/specs/` slug, a cycle number).
+
+   **Unreachable — rewrite or inline; these never resolve from the
+   tracker:**
+   - **The producing chat by reference, in any phrasing** — "the
+     in-context discussion", "settled before the run", "the session /
+     cycle transcript", an in-context juror/panel verdict (`D3`). No
+     anchor can ever reach it; the irrecoverable case. (Quoting the
+     decision's words inline is fine — see the carve-out below.)
+   - **A weak prose pointer** — "above", "below", "earlier", "the prior
+     comment", "logged above", "as discussed" — with no resolvable
+     locator: the target comment's full URL, a `#N`, or a *same-entry*
+     `§` marker. A `§` pointing into another comment or file is itself
+     unreachable — link that comment's URL.
+   - **An artifact named by role, not locator** — "the OOS harness
+     issue", "see the ledger", a `Depends on` target — carrying no `#N` /
+     SHA / URL / repo path.
+   - **A path outside this repo** — `/mnt/...`, `~/.claude/...`, a Claude
+     auto-memory slug, another project's `BLOCKED.md`. Only a path in
+     *this* repo is reachable.
+   - **A bare code or ordinal whose defining set the entry does not
+     reproduce** — a plan-item / ledger / lens code (`I7`, `C16`), an
+     index ("decision #5"). Gloss it in place, or restate the set.
+   - **A locator-shaped token that resolves to nothing** — a template
+     placeholder (`#(A)`), or a `#`-number in the wrong format (`#0071` —
+     issue refs are unpadded integers like `#71`; a leading zero matches
+     nothing).
+
+   A chat decision becomes referenceable only by being **written to the
+   tracker first** — log it, then cite that comment; a chat is reachable
+   by being written down, never by being pointed at (the `boss`
+   reference-issue mechanic, `../boss/SKILL.md` § The reference issue).
+
+   **These stay self-contained** (don't strip them chasing the rule): an
+   inline dated verbatim quote of a chat decision ("`mach es so!` —
+   2026-06-29") — the reader sees the exact words, and only a surplus
+   "settled in-context" sentence *beside* it is the violation; an
+   enumerated fork `(A)`/`(B)` whose options are restated here; a
+   glossary code glossed inline; a provenance sentence whose fact is also
+   stated inline, so long as it embeds no unresolvable pointer (keep
+   "decided", drop or anchor "logged above"). Flag the *pointer* a
+   tracker-only reader can't resolve, never the content it reproduces.
+
+   - Avoid: "Approach B (the mechanism refinement decided + logged
+     above)." — "logged above" points to a sibling comment with no
+     resolvable URL, so a reader who landed on this comment can't reach
+     the refinement; the violation is the unresolvable pointer, and it
+     stands even when the mechanism is restated inline. The bare label
+     "Approach B" compounds it — it indexes an A/B fork this entry never
+     reproduces, so the letter means nothing to a reader who didn't see
+     the fork laid out.
+   - Use — drop the chat-native label, name the option on its own terms,
+     then inline or link the refinement: "The honest per-held-cycle bleed
+     (accrue each held cycle, dump at close) — refined in
+     `http://…/issues/148#issuecomment-2142`."
 
 **Language:** title and body are English — an issue is a repo
 artefact mirrored to Gitea ("would it be committed → English", per
@@ -131,16 +191,28 @@ Notes:
 | `-d` body with a guessed flag (`--body`) | tea rejects it | `--description`/`-d` |
 | Editing without viewing first | Clobbers others' edits | `tea issues <idx>`, then edit |
 | Reading/echoing tea's config | Token leak | tea is already authenticated |
-| Dangling reference ("see the spec", an internal code) | Reader can't resolve it | Link it: `#N`, SHA, URL, or repo path |
+| Pointer to the chat that produced the entry ("in-context", "the cycle transcript", a juror code) | The chat is invisible to a tracker reader — never reachable | Quote the words inline, or log the decision to the tracker and cite that comment's full URL |
+| "above" / "below" / "the prior comment" with no anchor | A reader on a direct comment link can't tell which entry | Add the comment's full URL, a `#N`, or a *same-entry* `§` marker |
+| Artifact or path named without a locator — "the harness issue", "see the ledger", `/mnt/...`, `~/.claude/...` | Nothing to navigate to from the tracker | Supply a `#N`, SHA, URL, or in-repo path — or reproduce the fact inline |
+| Bare un-glossed code or ordinal (`I7`, `C16`, "decision #5") | Its defining set isn't in the entry | Gloss it inline, or restate the set |
 
 ## Red flags — STOP
 
 - The word "you" anywhere in title or body
 - A factual statement with neither evidence nor a "claim" flag
 - A title that is a noun phrase or ends with a period
-- A reference with no resolvable locator (`#N`, a commit SHA, a URL,
-  or an existing repo path), or an acronym/code needing outside
-  knowledge
+- A reference with no resolvable locator (`#N`, a commit SHA, a URL, an
+  existing repo path, a `docs/specs/` slug or cycle number, a same-entry
+  `§`, or the fact reproduced inline), or a bare never-glossed code whose
+  defining set isn't in the entry — in particular:
+  - a pointer to the chat that produced the entry ("in-context", "the
+    cycle transcript", a juror code); the chat is never tracker-reachable
+  - "above" / "below" / "the prior comment" / "as discussed" with no
+    resolvable locator — the comment's full URL, a `#N`, or a same-entry `§`
+  - an out-of-repo path (`/mnt`, `~/.claude`, a `memory <slug>`,
+    another project's `.md`) cited as the basis
+  - a `#`-token that resolves to nothing — a `#(A)` placeholder or a
+    wrong-format `#0071`
 - About to `tea issues edit` without having viewed the issue
 - About to print or `cat` the tea config
 
@@ -149,6 +221,8 @@ Notes:
 - `~/dev/CLAUDE.md` — repo-English rule, label vocabulary, the
   `closes #N` commit convention (the tracker is the forward-queue).
 - `../brainstorm/SKILL.md`, `../audit/SKILL.md`, `../boss/SKILL.md` —
-  callers that file issues through these conventions (`boss` files
-  skill-system feedback on the plugin's own tracker with an
-  autonomous-provenance body block, § Skill-system feedback).
+  callers that file issues through these conventions. `boss` files
+  skill-system feedback with an autonomous-provenance body block
+  (§ Skill-system feedback), and its § The reference issue is the
+  constructive escape hatch for rule 4: log a chat decision to the
+  tracker first, then cite that comment instead of pointing at the chat.