diff --git a/.github/scripts/close-issues-on-dev.sh b/.github/scripts/close-issues-on-dev.sh
new file mode 100755
index 00000000..cfd511a1
--- /dev/null
+++ b/.github/scripts/close-issues-on-dev.sh
@@ -0,0 +1,43 @@
+#!/usr/bin/env bash
+# close-issues-on-dev.sh — close the issues named by pull requests that merged into a branch other than
+# dev, once their merge commit is part of dev (see .github/workflows/close-issues-on-dev.yml).
+#
+#   DRY_RUN=1 .github/scripts/close-issues-on-dev.sh     # list, close nothing
+#
+# Needs: gh (authenticated; GH_TOKEN in CI), a checkout with full history, and origin/dev or HEAD on dev.
+# LOOKBACK: how many recently merged pull requests to consider (default 300).
+set -euo pipefail
+
+DRY_RUN="${DRY_RUN:-0}"
+LOOKBACK="${LOOKBACK:-300}"
+REPO="${GITHUB_REPOSITORY:-$(gh repo view --json nameWithOwner -q .nameWithOwner)}"
+DEV_REF="${DEV_REF:-HEAD}"
+[ "$DEV_REF" = HEAD ] && [ "$(git rev-parse --abbrev-ref HEAD)" != dev ] && DEV_REF=origin/dev
+
+closed=0; pending=0
+while IFS=$'\t' read -r pr base merge body64; do
+  [ -n "$merge" ] || continue
+  [ "$base" = dev ] && continue                               # GitHub closes these itself
+  if ! git merge-base --is-ancestor "$merge" "$DEV_REF" 2>/dev/null; then
+    pending=$((pending + 1)); continue                        # merged, but not on dev yet
+  fi
+  body=$(printf '%s' "$body64" | base64 --decode)
+  for n in $(printf '%s\n' "$body" | grep -oiE '\b(close[sd]?|fix(e[sd])?|resolve[sd]?)[[:space:]]*:?[[:space:]]+#[0-9]+' \
+             | grep -oE '[0-9]+$' | sort -un); do
+    state=$(gh issue view "$n" --repo "$REPO" --json state -q .state 2>/dev/null || echo MISSING)
+    [ "$state" = OPEN ] || continue
+    if [ "$DRY_RUN" = 1 ]; then
+      echo "would close #$n  (pull request #$pr into $base, ${merge:0:9} is on dev)"
+    else
+      gh issue close "$n" --repo "$REPO" \
+        --comment "Closed by #$pr, which merged into \`$base\` and reached \`dev\` in ${merge:0:9}."
+      echo "closed #$n  (pull request #$pr into $base)"
+    fi
+    closed=$((closed + 1))
+  done
+done < <(gh pr list --repo "$REPO" --state merged --limit "$LOOKBACK" \
+           --json number,baseRefName,mergeCommit,body \
+           -q '.[] | [.number, .baseRefName, (.mergeCommit.oid // ""), (.body // "" | @base64)] | @tsv')
+
+verb=closed; [ "$DRY_RUN" = 1 ] && verb="to close"
+echo "issues $verb: $closed; merged pull requests not on dev yet: $pending"
diff --git a/.github/workflows/close-issues-on-dev.yml b/.github/workflows/close-issues-on-dev.yml
new file mode 100644
index 00000000..e491bed8
--- /dev/null
+++ b/.github/workflows/close-issues-on-dev.yml
@@ -0,0 +1,44 @@
+# ─────────────────────────────────────────────────────────────────────────────
+# A pull request that merges into a release or integration branch (0.2.1, a
+# perf branch) never closes the issues it names: GitHub acts on "Closes #N" only
+# when the merge lands on the default branch. This closes them when that work
+# reaches `dev`.
+#
+# On every push to dev it looks at pull requests merged into any other branch,
+# keeps those whose merge commit is now part of dev, and closes each open issue
+# their description closes ("Closes", "Fixes", "Resolves" #N), with a comment
+# naming the pull request. "Part of #N" and "Refs #N" are not closing words, so
+# umbrella issues stay open.
+# ─────────────────────────────────────────────────────────────────────────────
+name: close-issues-on-dev
+
+on:
+  push:
+    branches: [dev]
+  workflow_dispatch:
+    inputs:
+      dry_run:
+        description: list what would be closed, close nothing
+        type: boolean
+        default: true
+
+permissions:
+  contents: read
+  issues: write
+  pull-requests: read
+
+jobs:
+  close:
+    name: close issues whose pull request reached dev
+    runs-on: ubuntu-24.04
+    timeout-minutes: 10
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: close the issues
+        env:
+          GH_TOKEN: ${{ github.token }}
+          DRY_RUN: ${{ github.event_name == 'workflow_dispatch' && inputs.dry_run && '1' || '0' }}
+        run: .github/scripts/close-issues-on-dev.sh
diff --git a/README.md b/README.md
index ba0d1d45..afb5f4ac 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@
 <h1 align="center">AxiomCode Graph</h1>
 
 <p align="center">
-  <strong>A god's-eye view of your codebase for AI agents. Stop grepping. Ensure correctness and completeness for any task your AI agent performs.</strong>
+  <strong>Know what each change breaks in your codebase. Stop grepping. Ensure correctness and completeness for any task your AI agent performs. Ship less buggy code.</strong>
 </p>
 
 <p align="center">
@@ -127,7 +127,7 @@ established relationships that could lead to false positives.
 
 AxiomCode Graph is two parts. The **engine** (`@axiomcode/code-graph` on npm) parses a repository and builds its
 graph; it also provides the `axiomcode` command and an MCP server. The **plugin** (`plugins/axiomcode/`) is the
-agent-facing frontend: a skill, four MCP tools, and hooks. Install the engine first.
+agent-facing frontend: a skill, five MCP tools, and hooks. Install the engine first.
 
 Requirements: **Node ≥ 22.13** and **Python 3** (`python3`, or `python` / `py` on Windows). On Windows, also
 [Git for Windows](https://git-scm.com/download/win): the CLI runs under its bash. The engine ships as a prebuilt
@@ -139,7 +139,7 @@ your platform. No Soufflé and no compiler are needed, with one exception:
 > `sudo apt install build-essential python3`. The full `node:*` Docker images already include them.
 
 Before every release, the exact packages that ship are installed without Soufflé and run end to end (every CLI verb,
-five languages) on macOS arm64 and x64, Linux x64 and arm64, and Windows x64. Check an install with
+six language engines, including HTML/CSS) on macOS arm64 and x64, Linux x64 and arm64, and Windows x64. Check an install with
 `axiomcode --version`.
 
 ### Installation
@@ -259,7 +259,7 @@ looked up again in the graph before you see it; the `verified:` line is that che
 
 ### Support for agents
 
-Every agent below gets the four MCP tools and the skill; the hooks, which keep the graph current and report what an
+Every agent below gets the five MCP tools and the skill; the hooks, which keep the graph current and report what an
 edit breaks, run where the last column says so. No hook annotates the agent's own reads and searches.
 
 | Agent | Hooks |
diff --git a/tests/mcp_docs.py b/tests/mcp_docs.py
index 90092481..42a40d23 100644
--- a/tests/mcp_docs.py
+++ b/tests/mcp_docs.py
@@ -26,7 +26,7 @@
        [os.path.join(ROOT, 'plugins', 'axiomcode', 'AGENTS.md')] + \
        sorted(glob.glob(os.path.join(ROOT, 'plugins', 'axiomcode', 'rules', '*.mdc')))
 
-VERB = r'(find|impact|path|tests)'
+VERB = r'(context|impact|link|path|tests)'
 # a tool named: a call `impact(`, the Claude Code name mcp__plugin_axiomcode_axiomcode__impact, MCP `impact`, or a command
 # in backticks (`axiomcode impact x`); `path:line: …` is an answer's shape, not the tool
 MENTION = re.compile(r'`(?:axiomcode )?' + VERB + r'(?:[ \t][^`\n]*)?`|\bmcp__plugin_axiomcode_axiomcode__' + VERB + r'\b'
@@ -130,7 +130,7 @@ def controls(tools):
         got = len(mismatches(documented(text), fake, 'control'))
         if got != want:
             bad.append(f"control {text!r}: {got} mismatch(es), want {want}")
-    if set(tools) != {'impact', 'path', 'tests'}:
+    if set(tools) != {'context', 'impact', 'link', 'path', 'tests'}:
         bad.append(f"the server listed {sorted(tools)}; the MCP tools were not read")
     return bad