ticket-estimate

ticket-estimate is a skill for Claude Code from iBrain-BVBA/gutt-claude-code-plugin. It costs 102 tokens per session (1,511 once invoked), scanned A, original, MIT.

A Jira ticket-sizing aid that compares a ticket with similar past work and reviews documented risks and incident history. Jira is a project-tracking tool, and the estimate remains advice rather than a value written into Jira.

In plain words
What is it for?
Use it during ticket refinement or planning to find comparable tickets, dependencies, risks, and a confidence level for the estimate.
Why use it?
It replaces guesses about effort with evidence from the team's previous work and highlights areas likely to cause delays.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the gutt-developer plugin — 6 skills, 2 agents shipped together

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/ibrain-bvba/gutt-claude-code-plugin/ticket-estimate
Any agent
npx skills add iBrain-BVBA/gutt-claude-code-plugin --skill ticket-estimate
Clone the repo
git clone --depth 1 https://github.com/iBrain-BVBA/gutt-claude-code-plugin

Made for: Claude Code.

Or install gutt-developer, the plugin that ships this one along with the rest of its 6 skills, 2 agents.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for ticket-estimate

README.md
[![agentmods](https://agentmods.dev/badge/skills/ibrain-bvba/gutt-claude-code-plugin/ticket-estimate.svg)](https://agentmods.dev/skills/ibrain-bvba/gutt-claude-code-plugin/ticket-estimate)
Your own site
<a href="https://agentmods.dev/skills/ibrain-bvba/gutt-claude-code-plugin/ticket-estimate"><img src="https://agentmods.dev/badge/skills/ibrain-bvba/gutt-claude-code-plugin/ticket-estimate.svg" alt="Measured on agentmods" height="20"></a>
Per session 102 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,511 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00102 $0.01511
Opus 5 $0.00051 $0.00756
Sonnet 5 $0.00020 $0.00302
Haiku 4.5 $0.00010 $0.00151

Measured 5d ago against content hash 2ba05e66c19f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

ticket-estimate scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

gutt-developer/skills/ticket-estimate/SKILL.md · 135 lines

How it starts

The opening of the file, as written. The whole thing — 135 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Ticket Estimate

Estimates fail on the unknowns, and the unknowns are usually already in the org's history: the last time this area was touched, what was underestimated, which dependency stalled, where the incidents cluster. This skill grounds a ticket's estimate in that history — comparables with citations, risks with evidence, and an honest confidence label. The number stays advice: committing to it is the team's act, not the skill's.

Underneath, memory-search owns the search ladder and the relevance gate, graph-traversal owns relationship walking, and memory-capture owns any durable write; they ship with the gutt-pro plugin (this plugin depends on it). Without them, follow the rules below and note the gap in one line. Jira access comes from whatever Atlassian tooling the session surfaces; names and prefixes vary per install.

Hard rules (non-negotiable — read first)

  1. Jira is read-only here — never write an estimate into it. No story-point fields, no estimate fields, no status changes, no edits to any other field — the output is advice in the reply. The one permitted write is a comment, drafted and posted only after the user approves the exact text in this session. Treat it as final — approval is the gate, not an undo; a truly needed correction re-approves the text and targets the existing comment if the tool allows, rather than posting a second one. Write markdown and set the tool's content-format parameter to markdown when it exposes one.
  2. Confidence is honest. Thin comparables → say low confidence and why. An estimate with no comparables at all is a guess — label it a guess rather than dress it up as analysis. Fabricated confidence is the one failure mode this skill must never have.
  3. A range with a basis, in the team's unit. Read the unit the team actually uses off the ticket and its board (points, days, t-shirt sizes); if it is not visible, ask, or default to a day-range and say so. Always a range plus the one-line basis — a bare number invites false precision.
  4. Calendar time is not effort. A past ticket's created→resolved span includes waiting, handoffs, and life. Treat it as a weak upper signal only; prefer what the record says was actually involved — scope, rework, surprises.
  5. Every comparable and risk is real and cited — a resolved ticket key with its resolution date, or a memory episode, lesson, or incident (id, date). No invented history, and no risk without its evidence.
  6. Org scope is checked at the output — pass explicit group_ids naming the org group on reads (take the name from session results or ask; never guess one), treat scope as server-decided, and before any comparable or risk enters the offered comment, confirm that item's own scope is the org group; personal-scope material stays in the in-session output. Bare tool names, probed with ToolSearch. No memory writes — a durable sizing lesson goes through memory-capture's gate.

Read the full file on GitHub · 135 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 5d ago First seen · 135 lines · 102 tokens per session scan A 2ba05e66c19f

Subscribe to this mod's changes

ticket-estimate is a skill published in the GitHub repository iBrain-BVBA/gutt-claude-code-plugin (5 stars, last pushed 3d ago), licensed MIT. It adds 102 tokens to every session and 1,511 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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