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Triage a pipeline issue — reads title/body/labels/comments, recommends PATH A (docs-only), B (standard), C (multi-task), or D (quick-fix), and applies the `docs-only` / `multi-task` / `quick-fix` label directly. Posts a `## Classification` comment. Usage: /pipeline:classify-issue <issue_number>
How this skill is triggered — by the user, by Claude, or both
Slash command
/pipeline:classify-issueThis skill is limited to the following tools:
The summary Claude sees in its skill listing — used to decide when to auto-load this skill
At session start, before running any of the steps below, source the project's `pipeline.config` so the `PIPELINE_*` variables are available for the rest of this skill:
At session start, before running any of the steps below, source the project's pipeline.config so the PIPELINE_* variables are available for the rest of this skill:
source "$(pwd)/pipeline.config" 2>/dev/null || source ./pipeline.config
# Self-resolve CLAUDE_PLUGIN_ROOT in case the env var is unset in the Bash subshell.
# Anchor via the plugin cache glob (var-independent — no chicken-and-egg dependence on
# CLAUDE_PLUGIN_ROOT to FIND the resolver). _cpr_dir is the dir prefix; literal source line.
_cpr_dir="${CLAUDE_PLUGIN_ROOT:+${CLAUDE_PLUGIN_ROOT}/}"
_cpr_dir="${_cpr_dir:-$(ls -d ${HOME}/.claude/plugins/cache/claude-pipeline-local/pipeline/*/ 2>/dev/null | sort -V | tail -1)}"
_cpr_dir="${_cpr_dir:-$(ls -d ${HOME}/.claude/plugins/cache/claude-pipeline/pipeline/*/ 2>/dev/null | sort -V | tail -1)}"
source "${_cpr_dir}scripts/_resolve-plugin-root.sh" 2>/dev/null || true
The pipeline dispatches on one of four paths; this SKILL owns their definitions.
| Path | Label | Dispatcher | Discipline |
|---|---|---|---|
| A | docs-only | direct edits in worktree | flat edit → commit; no test cycle |
| B | (no path label) | spawned worker session | red → green → commit (TDD) |
| C | multi-task | tdd-implementer subagents per target dir | hook-enforced delegation; orchestrator may not Edit impl files |
| D | quick-fix | inline tdd-implementer in orchestrator | red → green → commit inline; execute-issue-plan Step 8 skipped |
PATH D is the body-marker primary route: declare <!-- pipeline:path=D --> in the issue body when the work is a one-line, single-precedent fix. Recurring shapes:
same shape as merged PR #X).pipeline.config; repoint a path constant).Execution: collapsed single-pass inline tdd-implementer in the orchestrator session (no spawned worker); evaluate-issue-pr is the sole review gate — execute-issue-plan Step 8 is skipped. In the autonomous run/fullsend lanes, PATH D classify is the FIRST stage run INSIDE that single collapsed inline context (classify → plan → execute carried forward as one context), so the recommended_path / quick-fix label checkpoint is emitted by that same collapsed agent rather than by a separate upstream classify dispatch. The standalone interactive /pipeline:classify-issue N invocation and the <!-- pipeline:path=D --> body-marker route are UNCHANGED — they still post a ## Classification comment and apply the path label directly.
Escalation backstop (down-route safety net). The collapsed D lane has an escalation backstop: if the executor finds mid-run that the change exceeds D's envelope, it aborts up to a spawned PATH B run (see execute-issue-plan's Collapsed inline D contract). That backstop is the precondition that makes a wrong B→D down-route (the #707 dependency) cheap and recoverable — mis-routing B work into D is reversed by escalation, not by shipping a too-large diff, so classification may lean D without fear.
The rule (Blast-radius B→D). Parse the issue body's ## Affected areas section and count non-test source files, excluding any path under tests/ or fixtures/; when type = fix( AND that source-file count is ≤ 2 AND all files share a single top-level module AND the high-uncertainty carve-out below does NOT apply, the issue is a PATH D candidate (strong prior, medium confidence).
fix(-applicability. The down-route applies only to type == fix( work. feat( issues are NEVER auto-down-routed by file count — feature work carries design/novelty uncertainty that file count does not proxy; a feat( with ≤ 2 files stays B.
High-uncertainty carve-out (the protected axis). Even for a fix( at ≤ 2 files in a single module, the down-route is SUPPRESSED — the issue stays B — when the title, body, or labels carry high-uncertainty signals: any of concurrency, race, lock, deadlock, security, auth, crypto, migration, or data-loss, or a label such as security / concurrency. Blast radius (file count) and uncertainty are orthogonal: a one-file race-condition fix is tiny in blast radius but high in correctness risk, so the carve-out guards the uncertainty axis that the fix( gate alone would admit. Applied as a SEMANTIC model judgment, NOT a substring grep (#1039): you read the words and decide whether the issue genuinely concerns authentication / locking / a data race — authoring is not auth, block is not lock, trace is not race. The mechanical call sites (scripts/path-b-execute-eligible.sh, scripts/plan-campaign.sh) enforce the same vocabulary via the word-bound shared regex in scripts/_high-uncertainty-match.sh; this prose carve-out must never be read as endorsing raw substring matching.
Not an override. This is a strong prior feeding step 4's score table, never an override: the authoritative <!-- pipeline:path=D --> body marker (step 3c) and an explicit path label (step 4 row 1) both still win over the blast-radius prior. Mined LOW-uncertainty exemplars (these down-route — few-shot calibration beats a numeric threshold):
| issue | Affected areas | source files (non-test) | uncertainty | route |
|---|---|---|---|---|
| #691 | 1 src + test | 1 | low | D |
| #667 | 1 src + test | 1 | low | D |
| #656 | script + config + test | 2 | low | D |
| #698 | 3 src + tests | 3 | low | B (boundary — >2 source files = legitimate B; rule self-calibrates) |
Worked high-uncertainty counter-example (the carve-out in action — small blast radius, but stays B):
| shape | Affected areas | source files | signal | route |
|---|---|---|---|---|
race-condition fix( | 1 src + test (single module) | 1 | race / concurrency / lock | B (carve-out: file count says D, but the high-uncertainty signal SUPPRESSES the down-route — must NOT be flagged D) |
Acceptance. The issue's acceptance gate — "no false-D on high-uncertainty issues (concurrency, security)" — is discharged by the carve-out, not by the fix(/feat( split: only LOW-uncertainty small fixes down-route, while high-uncertainty small fix( work is suppressed and held in B, so no high-uncertainty issue can be auto-D-routed by file count. The worked counter-example above is the asserted proof of the protected axis. This is a guidance-presence discharge, not an empirical sweep — classify-time data (no LOC, no diff) cannot support a runtime held-out harness, so the carve-out's signal vocabulary is the held-out protection, asserted statically in CI, and #700's escalation backstop remains the cost net for any residual mis-route. LOC is a retrospective validation signal only, never a classify-time input.
The skill receives an issue number as argument. Perform:
0a. Opener-association gate (trust precondition). Resolve the issue OPENER's GitHub authorAssociation and check it against the is-trusted-author primitive (scripts/filter-trusted-comments.sh, issue #545). If the opener lacks write access (association not in {OWNER, MEMBER, COLLABORATOR}), the body is untrusted: REFUSE to classify. Do NOT post a ## Classification comment, do NOT run the BEGIN-LABEL-APPLY block, do NOT apply any path label. Post a single triage-request comment surfacing the issue for human triage, then STOP. ("Human gates matter.") Resolve the association via gh api (NOT gh issue view --json author, which has no association field), then call is-trusted-author single-arg:
ASSOC=$(gh api repos/$PIPELINE_REPO/issues/<N> --jq '.author_association')
if ! bash "${CLAUDE_PLUGIN_ROOT:-.}/scripts/filter-trusted-comments.sh" is-trusted-author "$ASSOC"; then
gh issue comment <N> --repo "$PIPELINE_REPO" --body "Untrusted opener (authorAssociation=$ASSOC, no write access): surfacing for human triage. (issue #546)"
echo "REFUSED: untrusted opener (assoc=$ASSOC) for #<N>; not classified, no label applied." ; exit 0
fi
Fetch issue details and the trusted comment working set:
gh issue view <N> --repo $PIPELINE_REPO --json number,title,body,labels,updatedAt
# Trusted-only working set (issue #546, helper from #545) — drops comments from
# authors lacking write access; stdout = body + trusted comments, stderr = audit.
TRUSTED=$(PIPELINE_REPO="$PIPELINE_REPO" bash "${CLAUDE_PLUGIN_ROOT:-.}/scripts/filter-trusted-comments.sh" <N>)
All comment reads below (cache check in step 2, first-level comments in step 3) operate on the trusted working set $TRUSTED, never on a raw gh ... --json comments fetch.
Cache check. If the latest trusted ## Classification comment's createdAt is newer than the issue's updatedAt, the classification is fresh. If current labels match the cached recommendation → exit 0 ("cached — no re-classification needed"). If they don't → print Reconciling labels for cached classification #<N> and jump to step 5a using the cached recommended_path. Do NOT re-post the classification comment. The recommended_path is parsed from the trusted working set $TRUSTED (step 1), and the freshness timestamp is taken only from Classification comments authored by trusted writers — pipeline-posted ## Classification comments survive both filters because the operator account is OWNER, so the freshness/reconcile logic is unchanged. An outsider cannot poison the cache with a fake ## Classification comment.
# Freshness timestamp from TRUSTED Classification authors only (an outsider's
# fake comment is excluded, matching the $TRUSTED hard-drop in step 1).
LATEST_CLASS_TS=$(gh issue view <N> --repo $PIPELINE_REPO --json comments \
--jq '[.comments[] | select((.authorAssociation as $a | ["OWNER","MEMBER","COLLABORATOR"] | index($a)) and (.body | contains("## Classification")))] | max_by(.createdAt) | .createdAt // empty')
ISSUE_TS=$(gh issue view <N> --repo $PIPELINE_REPO --json updatedAt --jq '.updatedAt')
# ISO-8601 sorts lexicographically; `>` is strict-greater so add an OR-equality clause to treat same-second as fresh (issue #457).
if [[ -n "$LATEST_CLASS_TS" && ( "$LATEST_CLASS_TS" > "$ISSUE_TS" || "$LATEST_CLASS_TS" == "$ISSUE_TS" ) ]]; then
# Parse recommended_path from the trusted working set ($TRUSTED from step 1),
# never a raw --json comments fetch. The trailing match wins (latest trusted
# Classification body appears last in $TRUSTED).
CACHED_PATH=$(printf '%s\n' "$TRUSTED" \
| grep -oE 'recommended_path:\*\* [ABCD]' | awk '{print $2}' | tail -1)
CURRENT_LABELS=$(gh issue view <N> --repo $PIPELINE_REPO --json labels --jq '.labels[].name')
current_a=0; current_c=0; current_d=0
printf '%s\n' "$CURRENT_LABELS" | grep -qx docs-only && current_a=1
printf '%s\n' "$CURRENT_LABELS" | grep -qx multi-task && current_c=1
printf '%s\n' "$CURRENT_LABELS" | grep -qx quick-fix && current_d=1
desired_a=0; desired_c=0; desired_d=0
case "$CACHED_PATH" in A) desired_a=1 ;; C) desired_c=1 ;; D) desired_d=1 ;; esac
if [ "$current_a" = "$desired_a" ] && [ "$current_c" = "$desired_c" ] && [ "$current_d" = "$desired_d" ]; then
echo "Cached classification reused for issue #<N> (last classified at $LATEST_CLASS_TS)."
exit 0
fi
echo "Reconciling labels for cached classification #<N> (path=$CACHED_PATH)."
ISSUE_N="<N>"
RECOMMENDED_PATH="$CACHED_PATH"
# Jump to step 5a.
fi
Read first-level comments only — read from the trusted working set $TRUSTED (step 1); ignore quoted/nested text. Consider only top-level comments. Comments from authors lacking write access were already hard-dropped by the helper and never enter the classification.
3c. Body marker — primary route (evaluated before the rule table). See "## PATH D" above for when to add the marker. If the issue body contains <!--\s*pipeline:path=[A-Da-d]\s*--> (POSIX equivalent: <!--[[:space:]]*pipeline:path=[A-Za-z][[:space:]]*-->), the claim is authoritative: path = marker letter uppercased (A/B/C/D); confidence = high; rationale = "user-claimed path via body marker". First marker wins; malformed letters fall through to step 4. Run the parser; if MARKER_PATH is non-empty, set RECOMMENDED_PATH=$MARKER_PATH and skip to step 5. The B-marker case still runs step 5a so any prior docs-only/multi-task/quick-fix label is removed.
# BEGIN-PATH-MARKER-PARSE
# Required env: ISSUE_BODY (issue body markdown, may be multi-line).
# Sets: MARKER_PATH ("A"|"B"|"C"|"D" or empty string).
# Regex: <!--\s*pipeline:path=[A-Da-d]\s*--> (POSIX equivalent below).
MARKER_PATH=""
_raw=$(printf '%s' "$ISSUE_BODY" \
| grep -oE '<!--[[:space:]]*pipeline:path=[A-Za-z][[:space:]]*-->' \
| head -1)
if [ -n "$_raw" ]; then
_letter=$(printf '%s' "$_raw" \
| grep -oE 'pipeline:path=[A-Za-z]' \
| head -1 \
| cut -d= -f2 \
| tr 'a-z' 'A-Z')
case "$_letter" in
A|B|C|D) MARKER_PATH="$_letter" ;;
*) MARKER_PATH="" ;;
esac
fi
# END-PATH-MARKER-PARSE
3d. Advisory path hint (overridable prior, parsed before the rule table is scored). If the body contains <!-- pipeline:path-hint=[A-Ca-c] -->, it is an advisory prior emitted by create-issues — not authoritative. Run the parser below to populate HINT_PATH; it does NOT skip to step 5. The hint is read as one prior in step 4, is fully overridable, never short-circuits the rule table, and is OUTRANKED by an explicit path label (step 4 row 1) and the authoritative <!-- pipeline:path=D --> marker (step 3c). Vocabulary is {A, B, C} ONLY — D is authoritative-only and rejected to empty here. The hint and path= parsers have distinct syntax and cannot cross-match.
Pinned regex: <!--\s*pipeline:path-hint=[A-Ca-c]\s*--> (POSIX equivalent: <!--[[:space:]]*pipeline:path-hint=[A-Ca-c][[:space:]]*-->).
# BEGIN-PATH-HINT-PARSE (env: ISSUE_BODY; sets HINT_PATH = A|B|C or "". D rejected to "".)
HINT_PATH=$(printf '%s' "$ISSUE_BODY" \
| grep -oE '<!--[[:space:]]*pipeline:path-hint=[A-Za-z][[:space:]]*-->' | head -1 \
| grep -oE '=[A-Za-z]' | tr -d '=' | tr 'a-z' 'A-Z')
case "$HINT_PATH" in A|B|C) ;; *) HINT_PATH="" ;; esac
# END-PATH-HINT-PARSE
Score against rule set (first match wins):
| Signal | Path | Confidence |
|---|---|---|
Labels include docs-only | A | high |
Labels include multi-task | C | high |
Labels include quick-fix | D | high |
Body/title contains docs-only, update README, update CLAUDE.md, "no logic", "documentation only", "rename", "typo" | A | medium |
| Implied patch size: one file + ≤ ~20 LOC source → lean D; ≤ 3 files + ≤ ~40 LOC → lean B (estimate from the change described, NOT the issue body length) | D or B | medium |
Body/title contains one-line, single-line, single-file, single-subsystem, narrow fix, minimal, trivial, obvious, ~N LOC (N ≤ 30), no design choice, single condition, one regex, flip, swap, repoint, toggle, rename, typo, add guard, small bug, tweak, or labels include quick-fix | D | medium |
Body has a numbered/bulleted list of 3+ independent tasks (see alternative-bullet rule below) OR phrases for each of, multiple, parallel, batch, one per | C | medium |
| Body mentions schema + API + frontend changes in a single issue | C | low |
| Otherwise | B | medium |
options:, either, choose one, pick one — count as one work item with design ambiguity, not N tasks; lean B (not C) on 3+ alternatives to one decision.Acceptance, Acceptance Criteria, or Out of scope are verification scope or non-goals — skip them; do not count them as work items.flip and swap fire D only when they co-occur with a code-shaped token (file path with /+extension, function name in parens, or a backticked code token); bare "flip the wording" does NOT trigger D. tweak, obvious, minimal retain broad match.fix( issues whose ## Affected areas names ≤ 2 non-test source files in a single top-level module and that carry no high-uncertainty signal, lean D — see the #### Blast-radius B→D routing subsection under PATH D (feat( excluded; high-uncertainty fix( stays B).HINT_PATH from step 3d). A non-empty hint leans toward the hinted path — a PRIOR in the same weight class as the Blast-radius B→D prior (a thumb on the scale, not a gate). When other signals point elsewhere, they win; the hint only breaks ties / nudges among otherwise-balanced candidates.4a. Read any ingested attachments. Before composing, list and Read every file in .claude/scratch/issue-<N>/ (populated upstream by /pipeline:fullsend step 1a or /pipeline:plan-issue step 3b). If empty or absent, skip — this step does NOT re-fetch. Mandatory for issues labeled bug or user-submitted.
ls -1 .claude/scratch/issue-<N>/ 2>/dev/null || echo "(no attachments)"
Compose the classification output:
TERSENESS: Classification is a routing decision, not a report.
**rationale:**is 1-2 sentences citing the firing signal — no restatement of the issue body, no enumeration of rules that did NOT fire. Do not echo the rule table or the path definitions back into the comment.
Override rationale. If the resolved path differs from a non-empty
HINT_PATH(step 3d), the**rationale:**MUST record the override (e.g.create-issues hinted B; classified C — multiple subsystems in Affected areas) so the divergence is auditable.
## Classification
- **recommended_path:** A | B | C | D
- **confidence:** high | medium | low
- **rationale:** <one or two sentences citing the signal(s)>
_Label applied by classify-issue; override by editing the label directly — the label always wins over the comment on next classification._
5a. Apply the path label. Set ISSUE_N=<N>, RECOMMENDED_PATH=<A|B|C|D>, and CURRENT_LABELS=$(gh issue view <N> --repo $PIPELINE_REPO --json labels --jq '.labels[].name'), then run the sentinel-bounded block below. (Preserve byte-for-byte: pipeline tests extract it by sentinel and run it under stub gh.)
# BEGIN-LABEL-APPLY
# Required env: ISSUE_N (issue number), RECOMMENDED_PATH (A|B|C|D),
# CURRENT_LABELS (newline-separated label names), REPO (owner/name).
REPO="${REPO:-$PIPELINE_REPO}"
_has_label() { printf '%s\n' "$CURRENT_LABELS" | grep -qx "$1"; }
_safe_label() {
# Guardrail: this skill may only edit the three path labels.
case "$1" in
docs-only|multi-task|quick-fix) return 0 ;;
*) echo "REFUSED: label '$1' not in allow-set {docs-only|multi-task|quick-fix}" >&2; return 1 ;;
esac
}
current_a=0; current_c=0; current_d=0
_has_label docs-only && current_a=1
_has_label multi-task && current_c=1
_has_label quick-fix && current_d=1
desired_a=0; desired_c=0; desired_d=0
case "$RECOMMENDED_PATH" in A) desired_a=1 ;; C) desired_c=1 ;; D) desired_d=1 ;; esac
# Remove first, add second — avoids any momentary both-labels-present state
# that could trip a hook checking label invariants.
if [ "$current_a" -eq 1 ] && [ "$desired_a" -eq 0 ]; then
_safe_label docs-only && gh issue edit "$ISSUE_N" --repo "$REPO" --remove-label docs-only
fi
if [ "$current_c" -eq 1 ] && [ "$desired_c" -eq 0 ]; then
_safe_label multi-task && gh issue edit "$ISSUE_N" --repo "$REPO" --remove-label multi-task
fi
if [ "$current_d" -eq 1 ] && [ "$desired_d" -eq 0 ]; then
_safe_label quick-fix && gh issue edit "$ISSUE_N" --repo "$REPO" --remove-label quick-fix
fi
if [ "$desired_a" -eq 1 ] && [ "$current_a" -eq 0 ]; then
_safe_label docs-only && gh issue edit "$ISSUE_N" --repo "$REPO" --add-label docs-only
fi
if [ "$desired_c" -eq 1 ] && [ "$current_c" -eq 0 ]; then
_safe_label multi-task && gh issue edit "$ISSUE_N" --repo "$REPO" --add-label multi-task
fi
if [ "$desired_d" -eq 1 ] && [ "$current_d" -eq 0 ]; then
_safe_label quick-fix && gh issue edit "$ISSUE_N" --repo "$REPO" --add-label quick-fix
fi
# END-LABEL-APPLY
When reconciling a cached classification (step 2), run step 5a only and stop. When classifying fresh, proceed to step 6.
Post the classification comment:
gh issue comment <N> --repo $PIPELINE_REPO --body "<classification markdown>"
Verify post — count ## Classification comments; retry once on 0; report FAILED if still 0.
CLASS_COUNT=$(gh issue view <N> --repo $PIPELINE_REPO --json comments \
--jq '[.comments[] | select(.body | contains("## Classification"))] | length')
Report: "Classification posted to issue #N: (). Label applied: <docs-only | multi-task | quick-fix | none>."
docs-only on a refactor): recommend the labeled path with confidence=low; note the conflict in rationale.Autonomous assigner for the needs-browser label on externally-filed issues that skip create-issues (no operator present to take the filing-time advisory prompt). This is the classify-side parallel to the ### needs-browser advisory in create-issues, using the same conjunction + suppressors. Because classify runs operator-free, it posts an advisory comment rather than prompting — it does not add the label, so the BEGIN-LABEL-APPLY _safe_label allow-set {docs-only|multi-task|quick-fix} is unchanged (consumer-facing label behavior preserved).
assets/) OR a user-visible interaction claim (click / keyboard / focus / layout / render); AND acceptance is observable in a browser ("open page, do X, see Y").## needs-browser advisory note to the ## Classification comment (or post a separate comment) recommending the operator add needs-browser so visual proof runs. Advisory in nature — a false positive is a no-op note, never a wrong label.authorAssociation is in {OWNER, MEMBER, COLLABORATOR}. Everything else (CONTRIBUTOR, NONE, FIRST_TIME_CONTRIBUTOR, unknown, empty) is untrusted.scripts/filter-trusted-comments.sh (issue #545): the step-1 fetch, the step-2 cache-check, and the step-3 first-level comment read all operate on the $TRUSTED working set (hard-drop — untrusted comment bytes never reach the model), never a raw gh ... --json comments fetch.gh api repos/$PIPELINE_REPO/issues/<N> --jq .author_association (the GraphQL author object has no association field) and checked with the single-arg is-trusted-author "$ASSOC" primitive. An untrusted opener is refused-and-surfaced for human triage: no ## Classification comment, no BEGIN-LABEL-APPLY run, no path label.## Classification comments survive the filter because the operator account is OWNER, so the cache-check freshness/reconcile logic is unchanged.gh issue edit to add/remove ONLY the docs-only, multi-task, and quick-fix labels. Never touch any other label. Never modify code.<!-- pipeline:path=... -->) are honored when present and well-formed; they short-circuit the rule table but do NOT bypass step 5a label application. The B marker REMOVES any existing A/C/D label and adds nothing.npx claudepluginhub rjskene/pipeline --plugin pipelineCreates bite-sized, testable implementation plans from specs or requirements, with file structure and task decomposition. Activates before coding multi-step tasks.