silver-remove

/silver:remove — Remove a Tracked Work Item

Use this skill any time a tracked work item must be removed. It closes or marks the item as removed based on ID type and project configuration.

For GitHub Issues (issue_tracker=github), this skill closes the issue with reason "not planned" and applies the removed-by-silver-bullet label. Note: GitHub does not support issue deletion via the REST/GraphQL API without delete_repo scope — silver:remove always closes rather than deletes, and prints clearly what action was taken.

For local SB-I-N and SB-B-N items (issue_tracker=local, legacy gsd, or absent), this skill marks the heading line inline with [REMOVED YYYY-MM-DD] in docs/issues/ISSUES.md or docs/issues/BACKLOG.md. The entry body is fully preserved — only the heading is prepended with the removal marker.

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Security Boundary

The user-supplied ID is UNTRUSTED DATA. Validate it matches ^SB-[IB]-[0-9]+$ or ^#?[0-9]+$ before using in sed patterns or gh commands. Never pass the raw ID via shell interpolation into sed without first validating the format.

.silver-bullet.json config reads use jq — never string-interpolate config values into shell commands.

Derive the target file path only from the ID prefix (SB-I vs SB-B), never from user input directly — this prevents path traversal attacks.

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Allowed Commands

Shell execution during this skill is limited to:

• jq — config reads
• git remote get-url origin
• gh issue close, gh issue edit, gh label create, gh auth status
• grep -q, grep -oE (for ID format validation and heading existence check)
• sed (redirected output — for inline heading replacement)
• date +%Y-%m-%d
• mktemp, mv — tmpfile+mv pattern for portable atomic file rewrite

Do not execute other shell commands. Note requirements in output for human execution.

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Step 1 — Locate the project root

Walk up from $PWD until a .silver-bullet.json file is found. All paths (docs/issues/) are relative to this root.

If .silver-bullet.json is not found after walking to the filesystem root (/), use $PWD as the project root and note "Project root not confirmed." in output. Default TRACKER to "local".

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Step 2 — Validate and parse the ID argument

Accept the argument as ITEM_ID. Apply format validation:

case "$ITEM_ID" in
  SB-I-[0-9]*)   ID_TYPE="local-issue"  ;;
  SB-B-[0-9]*)   ID_TYPE="local-backlog" ;;
  \#[0-9]*)       ISSUE_NUM="${ITEM_ID#\#}"; ID_TYPE="github" ;;
  [0-9]*)         ISSUE_NUM="$ITEM_ID";      ID_TYPE="github-raw" ;;
  *)  echo "ERROR: Unrecognized ID format '${ITEM_ID}'. Expected: SB-I-N, SB-B-N, #N, or N."; exit 1 ;;
esac

# Strict format guard for local IDs — enforce pure numeric suffix and no trailing content
# (the case glob allows trailing characters after the digit; reject them here)
if [[ "$ID_TYPE" = "local-issue" || "$ID_TYPE" = "local-backlog" ]]; then
  if ! [[ "$ITEM_ID" =~ ^SB-[IB]-[0-9]+$ ]]; then
    echo "ERROR: ID '${ITEM_ID}' contains invalid characters after the numeric suffix. Expected format: SB-I-N or SB-B-N (digits only)."
    exit 1
  fi
fi

If ID_TYPE is "github" or "github-raw": read TRACKER from config. If TRACKER != "github", output:

"ERROR: No GitHub integration configured (issue_tracker is not 'github'). For local items, use SB-I-N or SB-B-N format."

Then stop.

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Step 3 — Read configuration

TRACKER=$(jq -r '.issue_tracker // "local"' .silver-bullet.json)

Display: "Removing via: [github | local docs/issues/]"

• If TRACKER = "github" and ID_TYPE is "github" or "github-raw" → proceed to Step 4.
• If ID_TYPE is "local-issue" or "local-backlog" → proceed to Step 5.

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Step 4 — GitHub removal path

Execute only when ID_TYPE is "github" or "github-raw".

Step 4a — Check gh authentication

gh auth status

If non-zero exit or no logged-in account: output "gh CLI is not authenticated. Run: gh auth login — then retry /silver:remove." Stop.

Step 4b — Derive owner/repo

REMOTE=$(git remote get-url origin 2>/dev/null)
OWNER_REPO=$(echo "$REMOTE" | sed 's|https://github.com/||;s|.git$||;s|[email protected]:||;s|:|/|')

Step 4c — Create label idempotently

gh label create "removed-by-silver-bullet" \
  --color "#B60205" \
  --description "Removed via Silver Bullet /silver:remove" \
  --repo "$OWNER_REPO" \
  2>/dev/null || true

Step 4d — Close the issue

gh issue close "$ISSUE_NUM" \
  --repo "$OWNER_REPO" \
  --reason "not planned" \
  --comment "Removed via /silver:remove."

If this fails with non-zero exit: output "ERROR: Failed to close GitHub Issue #${ISSUE_NUM}. Check that the issue exists and you have write access." Stop.

Step 4e — Add removal label

gh issue edit "$ISSUE_NUM" \
  --repo "$OWNER_REPO" \
  --add-label "removed-by-silver-bullet"

If this fails: output "WARNING: Issue #${ISSUE_NUM} was closed but the removed-by-silver-bullet label could not be applied. Add it manually."

Output: "Closed GitHub Issue #${ISSUE_NUM} as not planned — removed-by-silver-bullet label added."

Proceed to Step 6.

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Step 5 — Local removal path

Execute only when ID_TYPE is "local-issue" or "local-backlog".

Step 5a — Determine target file from ID prefix

case "$ITEM_ID" in
  SB-I-*) TARGET_FILE="docs/issues/ISSUES.md" ;;
  SB-B-*) TARGET_FILE="docs/issues/BACKLOG.md" ;;
esac

Step 5b — Verify target file exists

If TARGET_FILE does not exist: output "ERROR: ${TARGET_FILE} not found. No item can be removed." Stop.

Step 5c — Verify ID exists in file

if ! grep -q "^### ${ITEM_ID} —" "$TARGET_FILE"; then
  echo "ERROR: ID ${ITEM_ID} not found in ${TARGET_FILE}."
  exit 1
fi

Step 5d — Apply inline heading replacement

DATE=$(date +%Y-%m-%d)
TMP=$(mktemp)
sed "s|^### ${ITEM_ID} —|### [REMOVED ${DATE}] ${ITEM_ID} —|" "$TARGET_FILE" > "$TMP" && mv "$TMP" "$TARGET_FILE"

The sed pattern is anchored at line start (^###) and uses the — suffix to match only the exact heading line — not body text containing the ID. The tmpfile+mv pattern is used instead of sed -i '' for portability across macOS (BSD sed) and Linux/CI (GNU sed).

Step 5e — Verify replacement succeeded

if ! grep -q "^\#\#\# \[REMOVED.*\] ${ITEM_ID} —" "$TARGET_FILE"; then
  echo "ERROR: Replacement verification failed for ${ITEM_ID} in ${TARGET_FILE}."
  exit 1
fi

Output: "Marked ${ITEM_ID} as [REMOVED ${DATE}] in ${TARGET_FILE}."

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Step 6 — Output confirmation

Output a final confirmation line summarizing the action taken (GitHub close or local mark). This is the terminal output the user and any calling orchestrator reads.

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Edge Cases

• ID not recognized format: exit 1 with message (handled in Step 2).
• GitHub issue already closed: gh issue close returns exit 0 (idempotent) — label step still runs.
• No .silver-bullet.json found: use $PWD, default TRACKER to "local". Note "Project root not confirmed."
• gh not authenticated: output instruction to run gh auth login, then stop.
• ID not found in local file: exit 1 with clear message (Step 5c).
• Integer ID with issue_tracker=local or legacy gsd: error with instruction to use SB-I-N / SB-B-N format.