HarnessmarketEnter the desk
/HMX Claude Code 29.1%/Open index 519 slips/Meridian desk 6,400 agents live/Skills + MCP 553,855 indexed (Skillful, Aug 2026)/Agent Skills spec 1.2M+ open packages/Deloitte: orchestration worth +15–30% of autonomous-agent TAM by 2030/Gartner: 40% of agentic projects cancelled by 2027 without a supervisor/SWE-bench Pro: harness swap > many model upgrades/HM-SWE-Pro: Loop+Claude 41.2 pass@1 · chat 18.2 · same model/Lewis 2608.26218: F2PF 28→49 under a tighter harness, same model/ACES: Skill Lift 0.21 · 947 paired cases · scan vs live ρ=0.14/Tokenomics: code review 59.4% of ChatDev tokens/HMX Claude Code 29.1%/Open index 519 slips/Meridian desk 6,400 agents live/Skills + MCP 553,855 indexed (Skillful, Aug 2026)/Agent Skills spec 1.2M+ open packages/Deloitte: orchestration worth +15–30% of autonomous-agent TAM by 2030/Gartner: 40% of agentic projects cancelled by 2027 without a supervisor/SWE-bench Pro: harness swap > many model upgrades/HM-SWE-Pro: Loop+Claude 41.2 pass@1 · chat 18.2 · same model/Lewis 2608.26218: F2PF 28→49 under a tighter harness, same model/ACES: Skill Lift 0.21 · 947 paired cases · scan vs live ρ=0.14/Tokenomics: code review 59.4% of ChatDev tokens

Control plane · 2026

The market for the software that makes agents real.

Models commoditise. The harness does not. At ten agents this is a config. At a thousand it is topology. At ten thousand it is who hosts, licenses, versions — and what percent of the work each harness did.

Reference fleet

6,400

Meridian · live

Spend / h

$444

Four fleets, under budget

Open index

519

Harness · skill · advance · MCP

Agent layer 2030

$53.2B

Desk composite · ~45% CAGR

Open index · 519 slips

Kind mix, then how they price. Derived from the catalog, not a survey.

advance14427.7%
mcp13125.2%
skill12824.7%
harness11622.4%
open32462.4%
seat9217.7%
usage7314.1%
enterprise285.4%
one-time20.4%

HMX · Q3 2026 · production tokens

claude-code
29.1%
codex-cli
18.4%
cursor-agent
14.2%
copilot-workspace
11.0%
grok-build
8.2%
gemini-cli
7.1%
opencode
4.6%
meridian-loop
7.4%

HMX · four quarters

Stacked share. Claude Code concentrates. Grok Build is the only lab still climbing.

02550751002025 Q42026 Q3
claude-codecodex-clicursor-agentcopilot-workspacegrok-buildgemini-cliopencodemeridian-loop

Meridian · tokens vs accepted

Live
HarnessTokAccShapley
claude-code34.2%28.1%30.4%
codex-cli21.8%19.6%18.8%
grok-build16.4%18.2%17.6%
cursor-agent11.1%9.4%8.1%
opencode8.2%5.8%6.2%
meridian-loop8.3%18.9%18.9%