chore: purify CHANGELOG parenthetical product descriptions (#1777)

The 1.5.0 release section rendered two product-name parentheticals that
the product-name-purity gate (#1777) forbids:

  Claude Code (background dispatch is kept ...)
  Claude (`~/.claude/skills/gsd-ns-<router>/skills/<stem>/SKILL.md`)

Rewritten to the already-accepted forms (semicolon clause; "Claude at
`path`") so the back-merge into next passes the gate next enforces.
No code or behavior change.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

CHANGELOG.md

@@ -123,7 +123,7 @@ The violation is sourced from a new descriptor field, **`CheckDescriptor.violati
 - **`syncStateFrontmatter` no longer strips `current_phase`, `current_phase_name`, `current_plan`, and `progress` from `STATE.md`** — when body annotations are absent (e.g. after an agent rewrites the body), the existing frontmatter values for those scalars are now preserved, mirroring the fallback already applied in `cmdStateJson`. (#905) (#905)
 - **Top-level Claude Code `/gsd-plan-phase` now always spawns the researcher/planner/plan-checker agents instead of collapsing them inline** — a `<runtime_compatibility>` block after `</available_agent_types>` makes the Agent-availability requirement explicit and documents that the workflow fails-closed (stops with a clear log message) in genuinely Agent-less contexts; seven "ORCHESTRATOR RULE — CODEX RUNTIME" labels are renamed to "ALL RUNTIMES" so the guard applies universally; `execute-phase.md` scopes its existing "Other runtimes" inline-fallback prose to non-Claude contexts, preserving the #853 backgrounded-agent behaviour. (#913) (#913)
 - **`/gsd-plan-phase`, `/gsd-execute-phase`, `/gsd-autonomous` no longer carry `context: fork`** — these are spawning orchestrators; a forked subagent context has no `Agent` tool, preventing them from spawning the subagents they require. `effort: xhigh` is preserved. Fixes `/gsd:autonomous` halting with "running as a forked subagent" on 1.4.1 (#921). Also replaces the introspection-based Agent-availability check in `plan-phase`'s `<runtime_compatibility>` block with an attempt-based gate: the workflow now always attempts the `Agent()` call and only stops if a real tool-unavailable error is returned, eliminating false-negative aborts in top-level sessions (#922). (#921)
-- **Claude global install reverted to flat skill layout so concrete skills are discoverable.** PR #883 introduced nested skill layout for Claude (`~/.claude/skills/gsd-ns-<router>/skills/<stem>/SKILL.md`), but Claude Code's skill discovery scans only one level under `~/.claude/skills/` — nested concrete skills were never listed in the Skill-tool available-skills list and direct `Skill(skill="gsd-plan-phase")` calls stopped working. This fix reverts Claude to the flat layout (`~/.claude/skills/gsd-<name>/SKILL.md`) so all ~61 concrete skills are top-level and immediately discoverable. The 6 other runtimes that confirmed non-recursive scanning (cline, qwen, hermes, augment, trae, antigravity) retain their nested layout. (#924) (#924)
+- **Claude global install reverted to flat skill layout so concrete skills are discoverable.** PR #883 introduced nested skill layout for Claude at `~/.claude/skills/gsd-ns-<router>/skills/<stem>/SKILL.md`, but Claude Code's skill discovery scans only one level under `~/.claude/skills/` — nested concrete skills were never listed in the Skill-tool available-skills list and direct `Skill(skill="gsd-plan-phase")` calls stopped working. This fix reverts Claude to the flat layout (`~/.claude/skills/gsd-<name>/SKILL.md`) so all ~61 concrete skills are top-level and immediately discoverable. The 6 other runtimes that confirmed non-recursive scanning (cline, qwen, hermes, augment, trae, antigravity) retain their nested layout. (#924) (#924)
 - **`gsd-context-monitor.js` now echoes the actual invoking hook event name** — instead of hardcoding `hookEventName: "PostToolUse"` (or `"AfterTool"` for Gemini), the hook reads `data.hook_event_name` from the stdin payload and falls back to the runtime heuristic only when the field is absent or blank; this fixes Claude Code rejecting hook output with `"expected Stop but got PostToolUse"` when the monitor is invoked by the Stop, SubagentStop, or PreCompact hooks registered in PR #821. (#925) (#926)
 - Fix `--reapply` verifier false-positives on post-#604-rename installs caused by two gaps in pristine-baseline handling:
 
@@ -161,7 +161,7 @@ The violation is sourced from a new descriptor field, **`CheckDescriptor.violati
 - **The installer no longer re-adds a duplicate managed hook when the user registered it in `command`+`args` (wrapped) form** — the presence checks only inspected `h.command`, so an args-form wrapper (a common Windows windowless-launcher mitigation) was invisible and a stock entry was appended on every install/update, running the hook twice. (#976) (#994)
 - `cmdSkillManifest` now discovers concrete skills nested under `gsd-ns-*` routers (`<root>/gsd-ns-<router>/skills/<stem>/SKILL.md`), so `gsd-health` and `gsd-settings` report the correct count on nested-layout runtimes (cline, qwen, hermes, augment, trae, antigravity). The scan is scoped to `gsd-ns-*` router dirs only — unrelated user dirs that happen to have a `skills/` subdirectory are not traversed. Dual-routed concretes (same skill installed under two routers) are deduped by name within each root. (#929) (#929)
 - **state record-session no longer pins a CPU core forever** — acquireStateLock busy-spun at 100% CPU when a recoverable errno (e.g. ENOENT from a removed worktree) persisted, because that retry path skipped the backoff sleep and the 30s time budget. Every retry path is now bounded and backed off. (#1236) (#1236)
-- **`/gsd-manager` and `/gsd-autonomous --interactive` no longer silently skip worktree isolation and independent verification on Claude Code.** They dispatched plan/execute as background agents, but a backgrounded Claude Code agent has no Agent/Task tool and cannot spawn the nested executors, plan-checker, or verifier — so isolation and verification silently never ran. Both workflows now resolve the runtime and run plan/execute inline on Claude Code (background dispatch is kept on runtimes that support nested subagents). (#863)
+- **`/gsd-manager` and `/gsd-autonomous --interactive` no longer silently skip worktree isolation and independent verification on Claude Code.** They dispatched plan/execute as background agents, but a backgrounded Claude Code agent has no Agent/Task tool and cannot spawn the nested executors, plan-checker, or verifier — so isolation and verification silently never ran. Both workflows now resolve the runtime and run plan/execute inline on Claude Code; background dispatch is kept on runtimes that support nested subagents. (#863)
 - **Researcher agents can now invoke Perplexity** — `gsd-phase-researcher` and `gsd-project-researcher` referenced `mcp__perplexity__*` in their provider dispatch tables but never granted it in their `tools:` allowlist, so Perplexity web research silently fell through to the next provider. The grant is now generated from the researcher profiles, with a parity guard that fails if a future dispatch-table provider is added without its tool grant. (#1284) (#1288)
 - Init phase lookups now resolve active phases whose canonical details live in a flat Phase Details block outside the current milestone summary, restoring requirement coverage for plan/execute/phase-op flows. (#1344)
 - **Installer no longer leaks `gsd-cmd-rewrites-*` temp directories.** Each install that emitted slash commands left one `fs.mkdtempSync` directory under the system temp root; on `tmpfs` `/tmp` hosts these accumulated and consumed RAM-backed storage. `installRuntimeArtifacts()` now removes the temp copy in a `finally` once command files are copied. (#862)