diff --git a/actions/changeset/check-coverage/action.yaml b/actions/changeset/check-coverage/action.yaml
index 8bf83617..17ec6121 100644
--- a/actions/changeset/check-coverage/action.yaml
+++ b/actions/changeset/check-coverage/action.yaml
@@ -1,18 +1,19 @@
 name: Check changeset coverage
 author: 'MiLaboratories'
 description: |
-  Fail if a PR's changesets don't cover every workspace package it modifies.
+  Fail if a PR's changesets don't cover every workspace package whose own
+  files it edits — e.g. editing block code under packages/<pkg>/ without
+  adding that package to the changeset.
 
-  Catches two common gaps:
-    - editing files inside a workspace package (e.g. block code under
-      packages/<pkg>/) without adding that package to the changeset;
-    - bumping a catalog version in pnpm-workspace.yaml without a matching
-      bump for packages that consume it as a runtime dependency via
-      `catalog:` — build-tool bumps in devDependencies are ignored.
+  Dependency-version bumps are intentionally NOT flagged, including catalog
+  bumps in pnpm-workspace.yaml. A catalog entry always pins an external
+  package, and `pnpm changeset` never requires a release for an external
+  dependency bump — it propagates versions through the internal dependency
+  chain automatically at `changeset version` time. Flagging consumers of a
+  bumped catalog dependency would over-report relative to `pnpm changeset`.
 
-  Runs after `pnpm install`. Requires the runner to have `pnpm`, `jq`, and
-  `yq` (mikefarah, v4+) on PATH — all pre-installed on GitHub-hosted
-  ubuntu-latest images.
+  Runs after `pnpm install`. Requires the runner to have `pnpm` and `jq` on
+  PATH — both pre-installed on GitHub-hosted ubuntu-latest images.
 
 inputs:
   base-branch:
diff --git a/actions/changeset/check-coverage/check-coverage.sh b/actions/changeset/check-coverage/check-coverage.sh
index 4fc6d08e..0014ab86 100755
--- a/actions/changeset/check-coverage/check-coverage.sh
+++ b/actions/changeset/check-coverage/check-coverage.sh
@@ -1,25 +1,25 @@
 #!/usr/bin/env bash
 #
-# Verify the PR's changesets bump every workspace package the PR modifies.
-# Exit 1 on a coverage gap; exit 2 on tooling failure; exit 0 otherwise.
+# Verify the PR has a changeset for every workspace package whose own files
+# it edits. Exit 1 on a coverage gap; exit 2 on tooling failure; exit 0
+# otherwise.
 #
-# Two sources of "modified":
+# "Modified" means a direct edit to a workspace package's own files, detected
+# via `pnpm --filter '[<base>]' list` — pnpm runs the per-package git-diff
+# check itself. Root-level paths (`.github/`, `docs/`, `pnpm-workspace.yaml`,
+# `README.md`) live in no package directory, so they never trigger inclusion.
 #
-#   1. Direct edits to a workspace package's files, detected via
-#      `pnpm --filter '[<base>]' list` — pnpm runs the per-package
-#      git-diff check itself.
-#
-#   2. Catalog version bumps in pnpm-workspace.yaml: for each touched
-#      catalog key, find workspace packages that consume it as a runtime
-#      dependency (`dependencies` or `peerDependencies`) via
-#      `"<key>": "catalog:..."` and require those packages to bump.
-#
-#      Runtime sections only — skip devDependencies and optionalDependencies.
-#      A build-tool bump (e.g. @platforma-sdk/block-tools in a block's model,
-#      @platforma-sdk/tengo-builder in its workflow) leaves the published
-#      artifact unchanged, and `pnpm changeset` ignores it too. Counting it
-#      flagged packages the PR never touched — e.g. a UI-only change that
-#      carried a shared build-tool bump.
+# Dependency-version bumps never require a changeset — including catalog
+# bumps in pnpm-workspace.yaml. A catalog entry always pins an *external*
+# package (workspace packages are referenced via `workspace:*`, never
+# `catalog:`). `pnpm changeset` ignores such a bump twice over: it never
+# releases a package because an external dependency's version changed, and it
+# propagates internal bumps through the dependency chain automatically at
+# `changeset version` time. So requiring a hand-written changeset for a
+# package that only "changed" via a dependency bump over-reports relative to
+# `pnpm changeset` — see platforma-open/clonotype-space#95, where a
+# `@platforma-sdk/workflow-tengo` catalog bump spuriously failed the
+# untouched `.workflow` package.
 #
 # Skips private (unpublished) workspace packages — they never appear in
 # the changeset's release set.
@@ -50,12 +50,11 @@ fi
 # absolute paths on macOS (prepends cwd, causing ENOENT). Cwd-relative is
 # safe on every platform.
 status_json=".changeset-coverage-status-$$.json"
-pkg_list_json=".changeset-coverage-pkgs-$$.json"
 
 # ---------------------------------------------------------------------------
 # 1. Bumped set from `changeset status --output=...`.
 # ---------------------------------------------------------------------------
-trap 'rm -f "${status_json}" "${pkg_list_json}"' EXIT
+trap 'rm -f "${status_json}"' EXIT
 
 # Invoke the binary directly. `pnpm exec` and `pnpm <script>` spawn subshells
 # that lose `node_modules/.bin` from PATH on repeated invocations. The action
@@ -118,13 +117,13 @@ require_pkg() {
   required_reason["${pkg}"]="${required_reason[${pkg}]:-}${reason}; "
 }
 
-# 2a. Direct workspace-package edits.
+# Direct workspace-package edits.
 #
 # `pnpm --filter '[<since>]' list` selects packages whose own files changed
 # (pnpm runs the per-package `git diff` itself). Root-level paths like
 # `.github/`, `docs/`, `pnpm-workspace.yaml`, or `README.md` are not in any
 # package directory and so don't trigger inclusion — no manual ignore list
-# needed.
+# needed, and a catalog bump in pnpm-workspace.yaml never reaches this filter.
 #
 # The jq filter drops private packages here (they never appear in a
 # changeset's release set), so `require_pkg` doesn't need to re-check.
@@ -137,78 +136,6 @@ done < <(
 
 log "Direct-edit packages: ${#required_set[@]}"
 
-# 2b. Catalog version bumps in pnpm-workspace.yaml.
-#
-# Only runs when the workspace yaml itself changed. Builds a full
-# workspace map so we can find every consumer of each touched catalog key.
-if git diff --name-only "origin/${BASE_BRANCH}...HEAD" | grep -qx 'pnpm-workspace.yaml'; then
-  pnpm -r list --depth -1 --json >"${pkg_list_json}"
-
-  # pnpm returns canonical absolute paths; strip the workspace root via
-  # `pwd -P` so the result matches the workspace's view on either platform.
-  workspace_root="$(pwd -P)"
-  declare -A pkg_name_to_dir=()
-  declare -A pkg_is_private=()
-
-  while IFS=$'\t' read -r pkg_name pkg_path pkg_private; do
-    [ -z "${pkg_name}" ] && continue           # workspace root has no name
-    rel="${pkg_path#${workspace_root}/}"
-    [ "${rel}" = "${pkg_path}" ] && continue   # workspace root itself
-    pkg_name_to_dir["${pkg_name}"]="${rel}"
-    pkg_is_private["${pkg_name}"]="${pkg_private}"
-  done < <(jq -r '
-      .[]
-      | select(.name != null and .name != "")
-      | [.name, .path, (.private // false | tostring)]
-      | @tsv
-    ' "${pkg_list_json}")
-
-  # Extract catalog keys whose value changed (added, removed, or bumped).
-  # Parse both the base and head versions structurally with yq, flatten the
-  # default catalog and any named catalogs to `key=value` lines, then take
-  # entries unique to either side. Avoids the false-positive surface of a
-  # line-level regex on the raw diff.
-  cat_pairs() {
-    yq -e '
-      [
-        (.catalog // {} | to_entries[]),
-        (.catalogs // {} | to_entries[].value // {} | to_entries[])
-      ] | .[] | .key + "=" + .value
-    ' 2>/dev/null || true
-  }
-  old_pairs="$(git show "origin/${BASE_BRANCH}:pnpm-workspace.yaml" 2>/dev/null | cat_pairs || true)"
-  new_pairs="$(cat_pairs <pnpm-workspace.yaml || true)"
-  mapfile -t catalog_keys < <(
-    { printf '%s\n' "${old_pairs}"; printf '%s\n' "${new_pairs}"; } \
-      | sed '/^$/d' \
-      | sort | uniq -u \
-      | sed -E 's/=.*//' \
-      | sort -u
-  )
-
-  if [ "${#catalog_keys[@]}" -gt 0 ]; then
-    log "Catalog keys touched: ${catalog_keys[*]}"
-    # For each catalog key, find workspace pkgs that depend on it with "catalog:".
-    for key in "${catalog_keys[@]}"; do
-      for name in "${!pkg_name_to_dir[@]}"; do
-        [ "${pkg_is_private[${name}]:-false}" = 'true' ] && continue
-        pj="${pkg_name_to_dir[${name}]}/package.json"
-        [ -f "${pj}" ] || continue
-        # Runtime sections only — a build-tool bump in devDependencies leaves
-        # the published artifact unchanged (see the header note).
-        if jq -e --arg k "${key}" '
-            [.dependencies?, .peerDependencies?]
-            | map(select(. != null) | to_entries) | add // []
-            | map(select(.key == $k and ((.value // "") | startswith("catalog:"))))
-            | length > 0
-          ' "${pj}" >/dev/null 2>&1; then
-          require_pkg "${name}" "catalog dep '${key}' bumped"
-        fi
-      done
-    done
-  fi
-fi
-
 # ---------------------------------------------------------------------------
 # 3. Compare required vs bumped.
 # ---------------------------------------------------------------------------
diff --git a/actions/changeset/check-coverage/test/coverage.bats b/actions/changeset/check-coverage/test/coverage.bats
index 8c891049..313fdf35 100644
--- a/actions/changeset/check-coverage/test/coverage.bats
+++ b/actions/changeset/check-coverage/test/coverage.bats
@@ -67,68 +67,61 @@ setup() {
 }
 
 # ---------------------------------------------------------------------------
-# Catalog bumps.
+# Catalog / dependency bumps — intentionally NOT a coverage requirement.
+#
+# A catalog entry always pins an *external* package: workspace packages are
+# referenced via `workspace:*`, never `catalog:`. `pnpm changeset` never adds
+# a package to its release plan because an external dependency's version
+# changed, and it propagates version bumps through the internal dependency
+# chain automatically at `changeset version` time. So a catalog bump on its
+# own requires no hand-written changeset — requiring one over-reports relative
+# to `pnpm changeset`.
+#
+# Regression: platforma-open/clonotype-space#95. The `.workflow` package listed
+# `@platforma-sdk/workflow-tengo` under `dependencies` as `catalog:`; the
+# catalog bumped it (5.25.0 → 6.3.2) while the package's own files were
+# untouched. The PR's changeset (model/ui/block) was complete per
+# `pnpm changeset`, yet the old check failed the PR on `.workflow`.
 # ---------------------------------------------------------------------------
 
-@test "catalog bump without consumer bumps fails and names every consumer" {
+@test "catalog bump alone requires no changeset (consumer files untouched)" {
+  # pkg-a and pkg-b both consume is-number via `dependencies: { is-number: catalog: }`
+  # — exactly the clonotype-space `.workflow` → workflow-tengo shape. Bumping
+  # the catalog without touching either package must pass.
   bump_catalog 'is-number' '^7.0.1'
   run_check
-  [ "${status}" -eq 1 ]
-  [[ "${output}" == *'@check-coverage-test/pkg-a'* ]]
-  [[ "${output}" == *'@check-coverage-test/pkg-b'* ]]
-  # pkg-c consumes is-string, not is-number — should not be flagged.
-  [[ "${output}" != *'@check-coverage-test/pkg-c'* ]]
+  [ "${status}" -eq 0 ]
 }
 
-@test "catalog bump with both consumers bumped passes" {
-  bump_catalog 'is-number' '^7.0.1'
-  add_changeset '"@check-coverage-test/pkg-a": patch
-"@check-coverage-test/pkg-b": patch' 'bump is-number'
+@test "runtime vs dev catalog dep is irrelevant — neither is flagged" {
+  # is-string is a runtime dep of pkg-c and a devDependency of pkg-dev. Bumping
+  # it flags neither: a dependency-version bump never requires a changeset.
+  bump_catalog 'is-string' '^1.0.8'
   run_check
   [ "${status}" -eq 0 ]
 }
 
-@test "catalog bump where only one consumer is bumped still fails for the other" {
+@test "catalog bump alongside a direct edit only requires the edited package" {
+  # The simultaneous is-number catalog bump adds no requirements: only pkg-c,
+  # whose own files changed, must be covered. pkg-a/pkg-b consume is-number but
+  # were not edited.
+  touch_file 'packages/pkg-c/index.js'
   bump_catalog 'is-number' '^7.0.1'
-  add_changeset '"@check-coverage-test/pkg-a": patch' 'bump is-number partial'
   run_check
   [ "${status}" -eq 1 ]
-  [[ "${output}" == *'@check-coverage-test/pkg-b'* ]]
-  [[ "${output}" != *'- @check-coverage-test/pkg-a'* ]]
-}
-
-@test "non-catalog YAML edits in pnpm-workspace.yaml don't trigger requirements" {
-  # An `overrides` entry that happens to share a name with a catalog key.
-  # Bumping it must NOT be treated as a catalog change — yq's structural
-  # parse ignores anything outside .catalog / .catalogs.
-  yq -i '.overrides."is-number" = "^7.0.5"' "${WORKSPACE}/pnpm-workspace.yaml"
-  git -C "${WORKSPACE}" commit --quiet -am 'bump override (not catalog)'
-  run_check
-  [ "${status}" -eq 0 ]
+  [[ "${output}" == *'@check-coverage-test/pkg-c'* ]]
+  [[ "${output}" != *'@check-coverage-test/pkg-a'* ]]
+  [[ "${output}" != *'@check-coverage-test/pkg-b'* ]]
 }
 
-@test "catalog bump for an unused key does not require any package" {
-  # Add then bump a catalog entry no one consumes.
-  yq -i '.catalog."unused-pkg" = "^1.0.0"' "${WORKSPACE}/pnpm-workspace.yaml"
-  git -C "${WORKSPACE}" commit --quiet -am 'add unused catalog key'
-  bump_catalog 'unused-pkg' '^1.0.1'
+@test "direct edit covered by a changeset passes even with a concurrent catalog bump" {
+  touch_file 'packages/pkg-c/index.js'
+  bump_catalog 'is-number' '^7.0.1'
+  add_changeset '"@check-coverage-test/pkg-c": patch' 'edit pkg-c'
   run_check
   [ "${status}" -eq 0 ]
 }
 
-@test "catalog bump consumed only as a devDependency does not flag the consumer" {
-  # is-string is a runtime dep of pkg-c but only a devDependency of pkg-dev.
-  # Bumping it flags pkg-c and leaves pkg-dev alone — the block case where a
-  # build-tool catalog dep (block-tools, tengo-builder) bumps while the
-  # package stays untouched. Runtime-only scoping fixed this; pkg-dev was
-  # flagged before.
-  bump_catalog 'is-string' '^1.0.8'
-  run_check
-  [ "${status}" -eq 1 ]
-  [[ "${output}" == *'@check-coverage-test/pkg-c'* ]]
-  [[ "${output}" != *'@check-coverage-test/pkg-dev'* ]]
-}
-
 # ---------------------------------------------------------------------------
 # Empty-changeset corner case.
 # ---------------------------------------------------------------------------
@@ -178,42 +171,3 @@ setup() {
   [ "${status}" -eq 2 ]
   [[ "${output}" == *'changeset binary not found'* ]]
 }
-
-# ---------------------------------------------------------------------------
-# Known limitations (skipped — document deferred follow-ups).
-# ---------------------------------------------------------------------------
-
-# Documents the deferred bug from PR #168: the catalog-key flatten in
-# check-coverage.sh collapses `.catalogs.alpha.<key>` and `.catalogs.beta.<key>`
-# into a single key=value stream, losing which named catalog owns each entry.
-# When two named catalogs both pin the same package and only one bumps, the
-# symmetric diff still emits the bare key — so consumers of the *unchanged*
-# catalog get spuriously flagged. Un-skip once the script tracks the
-# catalog-name discriminator.
-@test "named-catalog change should not flag consumers of unchanged catalog" {
-  skip "Known limitation: catalog flatten loses named-catalog discriminator (PR #168 follow-up)"
-
-  yq -i '
-    .catalogs.alpha."is-number" = "^7.0.0" |
-    .catalogs.beta."is-number"  = "^7.0.0"
-  ' "${WORKSPACE}/pnpm-workspace.yaml"
-
-  # pkg-a → catalog:alpha; pkg-b → catalog:beta.
-  for pair in 'pkg-a:alpha' 'pkg-b:beta'; do
-    name="${pair%:*}"; cat="${pair#*:}"
-    pj="${WORKSPACE}/packages/${name}/package.json"
-    jq --arg c "catalog:${cat}" '.dependencies."is-number" = $c' "${pj}" >"${pj}.tmp"
-    mv "${pj}.tmp" "${pj}"
-  done
-  git -C "${WORKSPACE}" commit --quiet -am 'add named catalogs (alpha, beta)'
-
-  # Bump alpha only — beta is untouched.
-  yq -i '.catalogs.alpha."is-number" = "^7.0.1"' "${WORKSPACE}/pnpm-workspace.yaml"
-  git -C "${WORKSPACE}" commit --quiet -am 'bump alpha catalog only'
-
-  run_check
-  [ "${status}" -eq 1 ]
-  [[ "${output}" == *'@check-coverage-test/pkg-a'* ]]
-  # Currently fails: pkg-b is also flagged because of the catalog flatten.
-  [[ "${output}" != *'@check-coverage-test/pkg-b'* ]]
-}