S

SessionCost

kish21/sessioncost · v0.5.12 · Tools & Integrations

by kish21Owner verifiedcaution

Shows how many tokens each turn and call of a Claude Code, Codex, Cursor or Antigravity session sent, what it cost, and measured fixes to send fewer

InstallSourceFollow0
Trust Score68Security59Surfaces2

Is SessionCost a fit?

From the plugin's manifest and HOL's scan. Anything the plugin does not declare is shown as not declared.

Works with

  • Codex
  • Claude Code
  • Cursor
  • Agent Plugin
  • 2 skills

Before you install

Sign-in
Not declared
Declared access
Not declared
License
MIT

Check before relying on it

oddysseyFeaturedObservability-Driven Development for coding agents: instrument an application or an AI agent with OpenTelemetry (gen_ai semantic conventions: model, agent, tool and MCP spans, token and latency metrics), observe a run through its metrics, traces, logs and profiles on a local Grafana stack or a remote backend, benchmark it with k6, and verify that a fix landedView plugin
Feature your plugin

What is SessionCost?

SessionCost is a published tools & integrations plugin for AI coding agents in the codex ecosystem, developed by kish21 and distributed through the HOL AI plugin registry. Shows how many tokens each turn and call of a Claude Code, Codex, Cursor or Antigravity session sent, what it cost, and measured fixes to send fewer

Canonical slug
kish21/sessioncost
Version
v0.5.12 · updated Oct 13, 2026

Trust & Reputation

HOL Trust Score
68

Factor Analysis

Per-metric points (0–100 each) combined via a weighted average into the overall score.

Installability
64pts
Maintenance
55pts
MCP Posture
100pts
Plugin Security
59pts
Provenance
70pts
Publisher Quality
75pts

Registry Snapshot

Project link
SessionCost
Publisher verification
No
Marketplace source
Unknown
Scanner
Broker fallback
Security result
Caution
Digest verified
Yes
2 bundled skills — copy or download SKILL.mdOpen skills

Trust & reputation

Trust & Reputation

HOL Trust Score
68

Factor Analysis

Per-metric points (0–100 each) combined via a weighted average into the overall score.

Installability
64pts
Maintenance
55pts
MCP Posture
100pts
Plugin Security
59pts
Provenance
70pts
Publisher Quality
75pts

Provenance

Plugin root
.
Source repo
https://github.com/kish21/sessioncost
Source commit
6398251e1117…
Publisher verified
No
Owner verified
@kish21

Continuous scanner CI detected

No action is required. This plugin receives the full trust score.

README badge detected

The source repository README links to this HOL listing. Distribution, not security evidence. It adds a 2% engagement adjustment to the overall trust score and never changes the security result.

Security Posture

See how the Trust Score is computed
Caution
Security result
59
Security score
0
High findings
Provider
registry-broker-fallback
Grade
F · caution
Version
Unknown
cisco-skill-scanner: unknown

Findings

mediumpublishabilitypublishability.link.missing.websiteURL

websiteURL should be present for marketplace readiness.

mediumpublishabilitypublishability.link.missing.privacyPolicyURL

privacyPolicyURL should be present for marketplace readiness.

mediumpublishabilitypublishability.link.missing.termsOfServiceURL

termsOfServiceURL should be present for marketplace readiness.

lowoperational-securitysupply-chain.lockfile-missing

Repository snapshot does not include a lockfile.

infoskill-securityskill-scan.unavailable

Cisco skill scanner timed out after 60000 ms

infoskill-securityskill-scan.unavailable

Cisco skill scanner timed out after 60000 ms

SessionCost — Frequently asked questions

What is SessionCost?
SessionCost is an AI plugin in the HOL registry. Shows how many tokens each turn and call of a Claude Code, Codex, Cursor or Antigravity session sent, what it cost, and measured fixes to send fewer
How do I install SessionCost?
Install SessionCost in your harness: Codex — codex plugin marketplace add kish21/sessioncost; Claude Code — /plugin marketplace add kish21/sessioncost; Cursor — npx [email protected] add kish21/sessioncost. Full step-by-step guidance is on the HOL plugin page.
How do I install SessionCost in Codex?
To install SessionCost in Codex, start with codex plugin marketplace add kish21/sessioncost. The complete step-by-step install guide for Codex is on the HOL plugin page.
How do I install SessionCost in Claude Code?
To install SessionCost in Claude Code, start with /plugin marketplace add kish21/sessioncost. The complete step-by-step install guide for Claude Code is on the HOL plugin page.
How do I install SessionCost in Cursor?
To install SessionCost in Cursor, start with npx [email protected] add kish21/sessioncost. The complete step-by-step install guide for Cursor is on the HOL plugin page.
Is SessionCost free?
Pricing for SessionCost is published on its HOL plugin page when the maker schedules a launch.
How is the Trust Score for SessionCost computed?
SessionCost has a HOL Trust Score of 68 out of 100. The score is a weighted sum of six components from a static scan of the source, capped for high-severity findings and adjusted by two disclosed policies. Memberships and payments are not inputs, and a scan is not a safety guarantee. Full breakdown: https://hol.org/registry/plugins/kish21%2Fsessioncost/trust
Who publishes SessionCost?
SessionCost is published by kish21 and listed on HOL.
Is SessionCost available now?
SessionCost availability is listed on its HOL plugin page.

Install Guidance

Install in Claude Code

Install through the Claude Code plugin marketplace.

Claude Code plugin docs

Optional: install HOL Guard for Claude Code first, so it can check this plugin's tools on your machine before Claude Code uses them.

  1. 1

    Add the marketplace

    Run this inside a Claude Code session. It registers the marketplace manifest shipped at the repository root. If the repository ships none, add the generated entry from the Advanced section below first.

    claude code
  2. 2

    Find the marketplace and plugin names

    The install id is <plugin-entry>@<marketplace-name>, and the marketplace name is declared inside the manifest — it can differ from the repository name. List registered marketplaces to read both names.

    shell
  3. 3

    Install the plugin

    Substitute the plugin entry name and the marketplace name shown by the previous step.

    claude code

Did setup work in Claude Code?

No setup reports for Claude Code yet. Self-reported by signed-in visitors. Copying a command is not counted, and most installs are never reported.

Attested installs: Fewer than 10 attested installs of this plugin in week 2026-W43, so no number is shown. Counted from opt-in HOL Guard install reports, once per machine and runtime, and never mixed with the answers above. How install reports work.

Loading reviews

Plugin Manifest

{
  "name": "sessioncost",
  "description": "See how many tokens each turn of this chat sends, why, and what to cut. Type /sessioncost.",
  "version": "0.5.12",
  "author": {
    "name": "kish21"
  },
  "homepage": "https://github.com/kish21/sessioncost",
  "repository": "https://github.com/kish21/sessioncost",
  "keywords": [
    "cost",
    "tokens",
    "usage",
    "session"
  ],
  "license": "MIT",
  "interface": {
    "displayName": "sessioncost",
    "developerName": "kish21"
  },
  "skills": "./",
  "holManifestOrigin": "repository",
  "registryIndexVersion": 5
}

Marketplace Source

Repo URL
https://github.com/kish21/sessioncost
Marketplace path
Unknown
Source path
.
Install policy
Unspecified

Skills

2 SKILL.md files ship with this plugin. Preview, copy, or download each one, then install them with the Skills CLI.

Share
skills-cli

  • sessioncost

    sessioncost/skill/SKILL.md

    (SessionCost {{VERSION}}) Show how many tokens each turn of THIS coding session sent, the heaviest turn, and the top fix to cut them (with what it cost). Use when the user asks where the tokens went, why the context is so big, what this session or chat cost, why it was expensive, or runs /sessioncost.

    Raw SKILL.md

    SKILL.md content is not in this snapshot. Open the raw file to copy it from the source repository.

  • sessioncost

    skills/sessioncost/SKILL.md

    (SessionCost 0.5.12) Show how many tokens each turn of THIS coding session sent, the heaviest turn, and the top fix to cut them (with what it cost). Use when the user asks where the tokens went, why the context is so big, what this session or chat cost, why it was expensive, or runs /sessioncost.

    Raw SKILL.md

    SKILL.md content is not in this snapshot. Open the raw file to copy it from the source repository.

File Inventory

.claude-plugin/plugin.json

file

727 bytes

0008dcc71f50c594…

.codex-plugin/plugin.json

plugin-manifest

481 bytes

cc4921ce1e9f39f8…

.cursor-plugin/plugin.json

file

277 bytes

cbe0d6590fea5e6a…

plugin.json

file

139 bytes

028e95f1a9970dda…

README.md

file

7,511 bytes

3b9efe457d867fe4…

SECURITY.md

file

559 bytes

5107b2cfd02978d9…

sessioncost/skill/SKILL.md

skill

2,778 bytes

7b87c1e8fe611eb6…

skills/sessioncost/SKILL.md

skill

3,367 bytes

ebf5126cfcfaf7b9…

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Alternatives in Tools & Integrations

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Guides and comparisons

Reviewed pages and articles that cover SessionCost.

History, reviews, and alternatives

Launch history

No public launch record yet.

User reviews

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