chore(gallery-agent): control bot via PR

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

.github/workflows/gallery-agent.yaml

@@ -48,23 +48,57 @@ jobs:
           go install google.golang.org/protobuf/cmd/protoc-gen-go@v1.34.2
           go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@1958fcbe2ca8bd93af633f11e97d44e567e945af
           PATH="$PATH:$HOME/go/bin" make protogen-go
-      - name: Collect URLs from open gallery-agent PRs
+      - name: Process gallery-agent PR commands
+        env:
+          GH_TOKEN: ${{ secrets.UPDATE_BOT_TOKEN }}
+          REPO: ${{ github.repository }}
+          SEARCH: 'chore(model gallery) in:title :robot:'
+        run: |
+          # Walk open gallery-agent PRs and act on maintainer comments:
+          #   /gallery-agent blacklist → label `gallery-agent/blacklisted` + close (never repropose)
+          #   /gallery-agent recreate  → close without label (next run may repropose)
+          # Only comments from OWNER / MEMBER / COLLABORATOR are honored so
+          # random users can't drive the bot.
+          gh label create gallery-agent/blacklisted \
+            --repo "$REPO" --color ededed \
+            --description "gallery-agent must not repropose this model" 2>/dev/null || true
+
+          prs=$(gh pr list --repo "$REPO" --state open --search "$SEARCH" --json number --jq '.[].number')
+          for pr in $prs; do
+            cmds=$(gh pr view "$pr" --repo "$REPO" --json comments \
+              --jq '.comments[] | select(.authorAssociation=="OWNER" or .authorAssociation=="MEMBER" or .authorAssociation=="COLLABORATOR") | .body')
+            if echo "$cmds" | grep -qE '(^|[[:space:]])/gallery-agent[[:space:]]+blacklist([[:space:]]|$)'; then
+              echo "PR #$pr: blacklist command found"
+              gh pr edit "$pr" --repo "$REPO" --add-label gallery-agent/blacklisted || true
+              gh pr close "$pr" --repo "$REPO" --comment "Blacklisted via \`/gallery-agent blacklist\`. This model will not be reproposed." || true
+            elif echo "$cmds" | grep -qE '(^|[[:space:]])/gallery-agent[[:space:]]+recreate([[:space:]]|$)'; then
+              echo "PR #$pr: recreate command found"
+              gh pr close "$pr" --repo "$REPO" --comment "Closed via \`/gallery-agent recreate\`. The next scheduled run will propose this model again." || true
+            fi
+          done
+
+      - name: Collect skip URLs for the gallery agent
         id: open_prs
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          REPO: ${{ github.repository }}
+          SEARCH: 'chore(model gallery) in:title :robot:'
         run: |
-          # Gather model URLs already proposed in any open gallery-agent PR so
-          # the agent can skip them and not re-propose the same model while a
-          # previous PR is still waiting to be merged.
-          urls=$(gh pr list \
-            --repo ${{ github.repository }} \
-            --state open \
-            --search 'chore(model gallery) in:title :robot:' \
-            --json body \
-            --jq '[.[].body] | join("\n")' \
-            | grep -oE 'https://huggingface\.co/[^ )]+' \
-            | sort -u || true)
-          echo "Found URLs from open PRs:"
+          # Skip set =
+          #   URLs from any open gallery-agent PR (avoid duplicate PRs for the same model while one is pending)
+          # + URLs from closed PRs carrying the `gallery-agent/blacklisted` label (hard blacklist)
+          # Plain-closed PRs without the label are ignored — closing a PR is
+          # not by itself a "never propose again" signal; maintainers must
+          # opt in via the /gallery-agent blacklist comment command.
+          urls_open=$(gh pr list --repo "$REPO" --state open --search "$SEARCH" \
+            --json body --jq '[.[].body] | join("\n")' \
+            | grep -oE 'https://huggingface\.co/[^ )]+' || true)
+          urls_blacklist=$(gh pr list --repo "$REPO" --state closed --search "$SEARCH" \
+            --label gallery-agent/blacklisted \
+            --json body --jq '[.[].body] | join("\n")' \
+            | grep -oE 'https://huggingface\.co/[^ )]+' || true)
+          urls=$(printf '%s\n%s\n' "$urls_open" "$urls_blacklist" | sort -u | sed '/^$/d')
+          echo "Skip URLs:"
           echo "$urls"
           {
             echo "urls<<EOF"
@@ -140,7 +174,21 @@ jobs:
             
             **Added Models:**
             ${{ steps.read_summary.outputs.added_models || '- No models added' }}
-            
+
+            ### Bot commands
+
+            Maintainers (owner / member / collaborator) can control this PR
+            by leaving a comment with one of:
+
+            - `/gallery-agent recreate` — close this PR; the next scheduled
+              run will propose this model again (useful if the entry needs
+              to be regenerated with fresh metadata).
+            - `/gallery-agent blacklist` — close this PR and permanently
+              prevent the gallery agent from ever reproposing this model.
+
+            Plain "Close" (without a command) is treated as a no-op: the
+            model may be reproposed by a future run.
+
             **Workflow Details:**
             - Triggered by: `${{ github.event_name }}`
             - Run ID: `${{ github.run_id }}`