performance-management

performance-management is a skill for Claude Code, Codex from cbrock84/headcount. It costs 59 tokens per session (748 once invoked), scanned A, original, MIT.

A guide to managing employee performance through clear expectations, regular feedback, review cycles, calibration, and fair handling of underperformance. Calibration means comparing assessments across managers to keep standards consistent.

In plain words
What is it for?
Use it to design or repair review systems, prepare feedback, run calibration meetings, and address sustained underperformance.
Why use it?
It replaces review processes that surprise people, take weeks, or fail to improve performance. It also highlights the legal risks of documenting performance and ending employment.

Skill for Claude CodeCodex

Part of the people plugin — 12 skills shipped together

About the project

headcount is an organization of independently installable Claude Code plugins, each grouping skills for a department such as finance, security, or demand generation. Claude Code users install the departments they need and invoke their skills for specialized work; the catalogue entries are skills and related agent tooling from that organization.

cbrock84/headcount · 1,247 stars · on GitHub

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/cbrock84/headcount/performance-management
Any agent
npx skills add cbrock84/headcount --skill performance-management
Clone the repo
git clone --depth 1 https://github.com/cbrock84/headcount

Made for: Claude Code, Codex.

Or install people, the plugin that ships this one along with the rest of its 12 skills.

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 performance-management

README.md
[![agentmods](https://agentmods.dev/badge/skills/cbrock84/headcount/performance-management.svg)](https://agentmods.dev/skills/cbrock84/headcount/performance-management)
Your own site
<a href="https://agentmods.dev/skills/cbrock84/headcount/performance-management"><img src="https://agentmods.dev/badge/skills/cbrock84/headcount/performance-management.svg" alt="Measured on agentmods" height="20"></a>
Per session 59 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 748 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 $0.00059 $0.00748
Opus 5 $0.00030 $0.00374
Sonnet 5 $0.00012 $0.00150
Haiku 4.5 $0.00006 $0.00075

Measured yesterday against content hash e6cf1809cb91, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

performance-management 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 yesterday.

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/people/skills/performance-management/SKILL.md · 79 lines

How it starts

The opening of the file, as written. The whole thing — 79 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Performance management

Most review systems are an expensive annual ritual that surprises nobody and improves nothing. The work happens in the ordinary week; the cycle should record it, not discover it.

Performance documentation carries legal weight, particularly around termination, discrimination and accommodation. Employment law varies by jurisdiction — involve qualified counsel before acting on sustained underperformance.

Expectations before assessment

Nobody can be fairly assessed against a standard they were not given. Expectations need to be specific to the level, written down, and shared before the period rather than produced during review as justification.

Separate two axes deliberately, because conflating them is the most common structural flaw:

  • Outcomes — what was delivered, which is partly situational.
  • Behaviors — how it was done, which is more within the person's control.

Someone who delivered through a collapsing market and someone who delivered by scorching the earth around them are different cases. A single blended rating hides both.

Feedback in the week, not the quarter

Feedback is useful proportional to its proximity to the event. Specific, immediate, and about the work: what happened, what the effect was, what to do differently.

The annual cycle should contain nothing new. A review that surprises someone is a reporting failure by their manager, and the surprise is the finding.

Calibration

Managers rate differently — some systematically generously, some harshly — and the differences are invisible until ratings sit side by side. Calibration exists to make comparison possible, not to fit a distribution.

Forced distributions are the failure mode here. On small teams they are statistically meaningless, and they reliably destroy exactly the collaboration the values section claims to reward.

Calibrate on evidence: what was delivered, at what level, against what expectation. A rating that cannot be defended with an example is a preference.

Read the full file on GitHub · 79 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. yesterday First seen · 79 lines · 59 tokens per session scan A e6cf1809cb91

Subscribe to this mod's changes

performance-management is a skill published in the GitHub repository cbrock84/headcount (1,247 stars, last pushed 2d ago), licensed MIT. It adds 59 tokens to every session and 748 once invoked, about $0.0003 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 2026-09-03.

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