metrics

name	metrics
description	Generates pipeline analytics report -- success rate, per-agent effectiveness, failure patterns, optional HTML dashboard
allowed-tools	mcp__*, Read, Glob, Grep, Bash, Write
argument-hint	[--period <N>] [--output <path>] [--format <md|json|html>]

Metrics

Input: $ARGUMENTS = optional flags (--period <N>, --output <path>, --format <md|json|html>)

Flag parsing

FORMAT=""        # empty = no flag supplied = trigger interactive prompt path
PERIOD=30
OUTPUT=""
while [[ $# -gt 0 ]]; do
  case "$1" in
    --period)
      PERIOD="$2"; shift 2
      ;;
    --output)
      OUTPUT="$2"; shift 2
      ;;
    --format)
      FORMAT="$2"; shift 2
      [[ "$FORMAT" =~ ^(md|json|html)$ ]] || { echo "Error: --format must be 'md', 'json', or 'html'"; exit 1; }
      ;;
    *)
      shift
      ;;
  esac
done

# Sentinel for interactive-prompt path
NO_FORMAT_FLAG=0
if [ -z "$FORMAT" ]; then
  NO_FORMAT_FLAG=1
  FORMAT="md"   # default render is markdown; prompt fires AFTER render
fi

• --period N → period in days (default: 30)
• --output path → output file (default: stdout)
• --format md|json|html → output format (default: md with interactive prompt)

Configuration

Read Automation Config from CLAUDE.md section ## Automation Config:

• Issue Tracker: Type, Instance, Project, Bug query, State transitions
• Source Control: Remote
• Optionally: Feature Workflow → Feature query
• Optionally: Metrics → Output, Period (overrides defaults)

0. MCP pre-flight check

Before any pipeline operation, verify MCP tool availability:

• Read Type from Automation Config (Issue Tracker section)
• Check that at least one mcp__* tool matching the tracker type is accessible
• If not accessible → STOP with: "Cannot connect to your {Type} issue tracker. Is the {Type} integration configured? Run /agent-flow:check-setup for diagnostics."

Orchestration

1. Fetch issues

Via MCP server (per Issue Tracker → Type), fetch all issues matching Bug query + Feature query (if it exists). For each issue: ID, title, state, comments, created date.

2. Parse [agent-flow] comments

For each issue, go through comments. Extract:

Triage checkpoint: Regex: ^\[agent-flow\] Triage completed\. Severity: (.+)\. Area: (.+)\.$

Spec checkpoint: Regex: ^\[agent-flow\] Spec analysis completed\. Area: (.+)\. Criteria: (.+)\.$

Block comment: Regex (multiline): ^\[agent-flow\] 🔴 Pipeline Block Following lines: Agent: (.+), Step: (.+), Reason: (.+), Detail: (.+), Recommendation: (.+)

PR link: Regex: PR: (https?://\S+) or #(\d+)

3. Fetch git data

git log --oneline --since="{period} days ago" via Bash. Parse commit messages for issue ID references.

4. Compute pipeline metrics

• total_attempted = issues with a [agent-flow] comment in the given period
• total_fixed = issues with PR merged (or in a state from State transitions → For Review/Done)
• total_blocked = issues with a [agent-flow] 🔴 Pipeline Block comment and still in Blocked state
• success_rate = total_fixed / total_attempted (percentage)
• avg_time_to_fix = average time from the first [agent-flow] comment to merged PR (if data available)
• block_by_stage = count of blocks per pipeline stage (triage, analysis, fix, review, test, publish)
• top_block_reasons = top 5 most frequent "Reason:" values from block comments

5. Compute per-agent metrics

For each agent (analyst, fixer, reviewer, test-engineer, browser-agent, publisher, scaffolder, spec-writer, spec-analyst, architect, acceptance-gate, deployment-verifier, backlog-creator, sprint-planner, priority-engine, spec-reviewer, rollback-agent): count blocks, success rate, most frequent failure reason.

• avg_fixer_iterations = from reviewer comments (how many REQUEST_CHANGES before APPROVE)
• failure_pattern_detection = if an agent blocks > 30% of issues → flag pattern with top reason

6. Token cost estimate

Per-issue estimate (heuristic fallback): count stages × model tokens (sonnet ~30k, opus ~50k, haiku ~5k per invocation). Total estimate for the period.

6a. Read state.json per issue (measured data — preferred over heuristics)

For each issue identified in Step 4, glob .agent-flow/*/state.json to locate per-run state files. Classify each pipeline run:

• MEASURED: pipeline.total_tokens is present in state.json → use pipeline.total_tokens directly; do NOT apply heuristic constants.
• ESTIMATED: pipeline.total_tokens is absent (legacy run or incomplete pipeline) → apply heuristic constants from Step 6.
• HYBRID (partial measurement): state.json has some stages with tokens_used but no top-level pipeline.total_tokens → classify the pipeline as ESTIMATED at the pipeline level, but note which stages had measured data in the detail section.

For each pipeline run, collect:

• measured_tokens = pipeline.total_tokens if present, else 0
• measured_stages = count of stages where {stage}.tokens_used exists and is > 0
• estimated_tokens = heuristic sum for stages missing tokens_used
• total_stages = count of all stages present in state.json

Maintain two global accumulators across all issues:

• all_measured_issues = list of issue IDs classified as MEASURED
• all_estimated_issues = list of issue IDs classified as ESTIMATED (including HYBRID)

7. Generate report

Output format depends on --format flag (default: md).

When --format json: emit a single JSON object matching the schema below. Do NOT emit any markdown text. Write to --output path if specified, otherwise stdout.

JSON schema:

{
  "generated_at": "ISO-8601 timestamp",
  "period_days": 30,
  "project": "string (tracker project key, e.g. PROJ — NOT full project name)",
  "pipeline_overview": {
    "issues_attempted": 0,
    "issues_fixed": 0,
    "issues_blocked": 0,
    "success_rate": 0.0,
    "avg_time_to_fix_hours": 0.0
  },
  "token_cost": {
    "measured_issues": ["PROJ-42"],
    "estimated_issues": ["PROJ-37"],
    "measured_tokens": 0,
    "estimated_tokens": 0
  },
  "block_analysis": {
    "by_stage": [
      {"stage": "triage", "blocks": 0, "pct": 0.0}
    ],
    "top_reasons": [
      {"reason": "string (sanitized — block.detail content excluded per state/schema.md hard contract)", "count": 0}
    ]
  },
  "per_agent": [
    {
      "agent": "fixer",
      "invocations": 0,
      "blocks": 0,
      "success_rate": 0.0,
      "top_failure": "string"
    }
  ],
  "recommendations": ["string"]
}

HARD CONTRACT — block.detail exclusion: top_reasons[].reason uses block.reason only (the sanitized 2-sentence summary from the block comment). block.detail is NEVER serialized into JSON output. This cross-references the comprehensive INCLUDE/EXCLUDE channel table in state/schema.md §"Sensitive field exclusion contract".

When --format md (default): emit markdown report as follows.

## Pipeline Metrics Report — {project} ({period} days)

### Pipeline Overview
| Metric | Value |
|--------|-------|
| Issues attempted | {N} |
| Issues fixed | {N} ({rate}%) |
| Issues blocked | {N} |
| Avg time to fix | {N} hours |

### Token Cost — Per Pipeline Breakdown

For each pipeline run in the period, emit separate line items for measured and estimated
tokens. NEVER emit a single combined grand total when any issues fall back to heuristics.

**Example output for a run with both measured and estimated data:**

Pipeline PROJ-42 (2026-04-18):
  Measured: 42,150 tokens (8 stages)
  Estimated: 12,500 tokens (2 stages, heuristic)
  Total: 54,650 tokens

Pipeline PROJ-37 (2026-04-17):  [ESTIMATED — legacy state]
  Estimated: 85,000 tokens (heuristic: 2×opus + 1×sonnet + 1×haiku)

Pipeline PROJ-55 (2026-04-19):  [MEASURED]
  Measured: 78,300 tokens (5 stages)
  Total: 78,300 tokens

**Hybrid pipeline (some stages measured, some not):**

Pipeline PROJ-60 (2026-04-20):  [ESTIMATED — partial measurement]
  Measured stages: triage (12,500 tok), code_analysis (9,800 tok)
  Estimated stages: fixer_reviewer, test (heuristic)
  Estimated: ~80,000 tokens
  Note: pipeline classified as ESTIMATED because pipeline.total_tokens is absent;
        2 of 4 stages had measured data.

### Token Cost — Period Summary

| Category | Issues | Tokens |
|----------|--------|--------|
| Measured (state.json) | {X} | {sum} |
| Estimated (heuristic) | {Y} | ~{sum} |

> Measured and estimated totals are NOT summed into a single grand total.

### Block Analysis
| Stage | Blocks | % of total |
|-------|--------|------------|
| triage | ... | ... |
| analysis | ... | ... |
| fix | ... | ... |
| review | ... | ... |
| test | ... | ... |
| publish | ... | ... |

Top block reasons:
1. {reason} ({N} occurrences)
...

### Per-Agent Effectiveness
| Agent | Invocations | Blocks | Success Rate | Top Failure |
|-------|-------------|--------|-------------|-------------|
| fixer | ... | ... | ... | ... |
| ... | ... | ... | ... | ... |

### Recommendations
- {threshold-based recommendations}

---
Data source: measured={X} pipelines (state.json.pipeline.total_tokens present), estimated={Y} pipelines (heuristic fallback).
**Provenance:** {X} pipeline(s) used measured token data from state.json (pipeline.total_tokens).
{Y} pipeline(s) fell back to heuristic estimates (sonnet ~30k, opus ~50k, haiku ~5k per stage).
{If Y > 0}: Pipelines run before per-stage usage tracking was introduced lack per-stage usage fields and are reported as estimated.
Estimated pipelines: {comma-separated list of estimated issue IDs and run dates}.

Generated: {timestamp} | agent-flow v{version}

If --output specified: write to file, otherwise stdout.

7a. Generate HTML (when --format html)

When $FORMAT == "html", generate a self-contained HTML file with inline CSS and JavaScript.

HTML escape (XSS defense for user-controlled data paths):

html_escape() {
  local s="$1"
  s="${s//&/&}"
  s="${s//</&lt;}"
  s="${s//>/&gt;}"
  s="${s//\"/&quot;}"
  s="${s//\'/&#39;}"
  printf '%s' "$s"
}

Order is critical: & MUST be substituted first to avoid double-escaping subsequent entity references.

All 5 user-controlled / tracker-sourced fields MUST be passed through html_escape BEFORE being interpolated into the HTML output:

• Issue title → $(html_escape "$issue_title")
• State label → $(html_escape "$state_label")
• Block reason → $(html_escape "$block_reason")
• Block recommendation → $(html_escape "$block_recommendation")
• Timeline content → $(html_escape "$timeline_content")

HTML structure (ported from the deleted dashboard skill):

• Header: project, timestamp, plugin version
• Pipeline Overview: 3 cards (Active blue #3B82F6, Blocked red #EF4444, Completed green #22C55E)
• Issue Table: sortable table (ID, Title, State, Stage, Agent, Tokens, Duration, PR) — Tokens and Duration columns show — when pipeline.total_tokens is absent from state.json
• Blocked Issues Panel: blocked issue details (agent, reason, recommendation)
• Recent Activity Timeline: last 20 events with colored dots (sort all [agent-flow] comments by timestamp desc)
• Statistics: success rate (progress bar), throughput, block distribution
• Recommendations: from Step 6
• Footer: generated timestamp, plugin version

CSS (inline <style> block):

• Responsive: desktop (1200px+) and mobile (< 768px)
• Colors: blue (#3B82F6), red (#EF4444), green (#22C55E), yellow (#F59E0B), gray (#6B7280)
• Font: system-ui, -apple-system, sans-serif
• Dark mode: prefers-color-scheme media query

JavaScript (inline <script> block, minimal):

• Table sorting: click on header → sort asc/desc
• Blocked detail expander: click → toggle detail visibility

8. Write output file (when --format html OR --output specified)

When $FORMAT == "html":

• If $OUTPUT is empty: HTML_PATH="./metrics.html"
• Else: HTML_PATH="$OUTPUT"
• Write the generated HTML to $HTML_PATH via Write tool

When $FORMAT == "md" or $FORMAT == "json" AND $OUTPUT is non-empty:

• Write the rendered report to $OUTPUT instead of stdout

9. Post-render interactive prompt (only when no --format flag was supplied)

When $NO_FORMAT_FLAG == 1:

After the markdown report is displayed on stdout, present the following Czech prompt to the user as a question requiring a response:

Save output? [1] No [2] JSON → stdout [3] HTML → ./metrics.html

Handle the response:

• 1 → exit (no save)
• 2 → re-render the report at --format json to stdout (re-execute Step 7's JSON branch)
• 3 → re-render the report at --format html to ./metrics.html (execute Step 7a + Step 8)
• Any other input → treat as 1 (no save)

When $NO_FORMAT_FLAG == 0: SKIP this step entirely. The user explicitly chose a format; honor that choice silently.

Autopilot safety: Autopilot does NOT invoke /metrics. The interactive prompt is therefore safe from non-TTY automation contexts.

Rules

• Read-only — no changes to the issue tracker or git
• Data is read via MCP servers
• If MCP unavailable → report error with explanation
• Threshold for recommendations: block_rate > 30% per agent, success_rate < 50%, single agent > 50% of blocks