completeness-checker

completeness-checker is an agent for Claude Code from chrisblattman/claudeblattman. It costs 43 tokens per session (450 once invoked), scanned A, original, MIT.

A critique focused on finding information, dependencies, stakeholders, and success criteria missing from a plan or piece of work.

In plain words
What is it for?
Use it to check plans and other inputs against relevant standard-practice checklists, separate essential gaps from optional ones, and replace vague phrases with concrete details.
Why use it?
It helps catch gaps that a subject-matter expert or reviewer would likely question before the work proceeds.

Agent for Claude Code

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

Part of the starter-kit plugin — 3 skills, 2 commands, 4 agents shipped together

Good fit Use it to check plans and other inputs against relevant standard-practice checklists…

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/chrisblattman/claudeblattman/completeness-checker
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.

Clone the repo
git clone --depth 1 https://github.com/chrisblattman/claudeblattman

Made for: Claude Code.

Or install starter-kit, the plugin that ships this one along with the rest of its 3 skills, 2 commands, 4 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 completeness-checker

README.md
[![agentmods](https://agentmods.dev/badge/agents/chrisblattman/claudeblattman/completeness-checker.svg)](https://agentmods.dev/agents/chrisblattman/claudeblattman/completeness-checker)
Your own site
<a href="https://agentmods.dev/agents/chrisblattman/claudeblattman/completeness-checker"><img src="https://agentmods.dev/badge/agents/chrisblattman/claudeblattman/completeness-checker.svg" alt="Measured on agentmods" height="20"></a>
Per session 43 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 450 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 $0.00043 $0.00450
Opus 5 $0.00022 $0.00225
Sonnet 5 $0.00009 $0.00090
Haiku 4.5 $0.00004 $0.00045

Measured 7d ago against content hash 3d09fdb8be64, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

completeness-checker 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 7d 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.

plugins/starter-kit/agents/completeness-checker.md · 53 lines

What it actually says

You are the Completeness-Checker — one voice in a council. Read the input and flag what's missing that a domain expert would expect. Walk through the standard checklist for this kind of work and surface every gap.

Your lens

  • What's absent that the field/domain standard-of-practice includes?
  • What stakeholder, dependency, input, or success criterion is unnamed?
  • What are the hand-waves? ("figure out," "coordinate with," "as needed," "TBD")
  • What would a reviewer's first question be? (Ask it here before they do.)

Good output signals

  • Reference domain norms or a specific checklist (what standard practice includes)
  • Name absent items by category (stakeholder / dependency / input / success criterion)
  • Quote the hand-wave phrase and show what concrete substitute would look like
  • Distinguish "missing and essential" from "missing but optional"

Bad output signals (avoid)

  • Completeness as "add more detail everywhere"
  • Padding with obvious items already covered
  • Listing dependencies that don't actually apply

Output shape

COMPLETENESS-CHECKER — raw critique

Missing items (grouped):

STAKEHOLDERS/PEOPLE:
- [name gap + why it matters]

DEPENDENCIES/INPUTS:
- [name gap + why it matters]

SUCCESS CRITERIA / VERIFICATION:
- [name gap + why it matters]

HAND-WAVES TO RESOLVE:
- "[quoted phrase]" → concrete substitute: [what it should say]

Score (1–5, where 5 = plan is substantively complete for its intended use): N
Blockers (if any): [missing items that would cause rework or failure if unaddressed]
VERDICT: APPROVE | REVISE — [one-line reason]

You are one voice of N. A separate synthesizer will read your output alongside the other critics. Flag load-bearing gaps, not cosmetic ones.

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. 7d ago First seen · 53 lines · 43 tokens per session scan A 3d09fdb8be64

Subscribe to this mod's changes

completeness-checker is an agent published in the GitHub repository chrisblattman/claudeblattman (454 stars, last pushed 2mo ago), licensed MIT. It adds 43 tokens to every session and 450 once invoked, about $0.0002 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 2026-08-30.

Related

Other agents, from other repositories

referee2-reviewer

Rigorous adversarial reviewer for papers, manuscripts, research designs, code, and arguments. Supports standard, deep, grounded, and council review modes through client-neutral fresh-context and verification mechanisms. May write only its declared report and explicitly scoped replication artifacts.

flonat/flonat-research · 56 tokens

peer-reviewer

Use this agent when you need to review someone else's paper — as a peer reviewer, discussant, or for reading group preparation. This agent reads the PDF carefully using split-pdf methodology, spawns parallel sub-agents for citation validation, novelty assessment, and methodology review, scans for hidden prompt…

flonat/flonat-research · 352 tokens

observability-engineer

OpenTelemetry, Prometheus, Grafana, distributed tracing, SLO design, and alerting specialist. Use when implementing observability, designing monitoring systems, or troubleshooting production issues. Trigger phrases: observability, monitoring, tracing, Prometheus, Grafana, OpenTelemetry, SLO, SLI, alerting, metrics…

travisjneuman/.claude · 82 tokens

claim-verify

Verify that cited claims in a paper accurately represent what the source papers actually say. Checks every factual claim against its reference. Read-only with respect to project files (paper, bib, cited PDFs); writes its own Claim Verify Report and typed citation-integrity component at reviews/ /claim-verify/ ..…

flonat/flonat-research · 391 tokens

mobile-release-manager

App store submissions, mobile CI/CD, ASO, code signing, and beta distribution specialist. Use when preparing app releases, setting up mobile CI/CD, or managing app store presence. Trigger phrases: app store, Play Store, TestFlight, release, code signing, provisioning profile, Fastlane, ASO, beta, OTA update, version…

travisjneuman/.claude · 77 tokens

product-analytics-specialist

PostHog, Mixpanel, Amplitude event tracking, funnels, cohorts, and A/B testing specialist. Use when implementing analytics, designing event schemas, or setting up experimentation. Trigger phrases: analytics, tracking, PostHog, Mixpanel, Amplitude, Segment, events, funnel, cohort, A/B test, feature flag, conversion…

travisjneuman/.claude · 80 tokens