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How good is your
vibe coding
really?

Most developers have no idea how their prompting actually performs — or how they compare. Prism scores every session so you finally know where you stand.

Check your Score

Works with Claude Code  ·  Codex & Gemini coming soon

PRISM SCORE — THIS WEEK
87 /100 B+ ↑ +6 from last week
Clarity 72 Context 45 Verification 88 Workflow 76
Crushed 34of 39 sub-sessions
Crush weight 24Ktokens, median

Context is this cycle's bottleneck — point at files with @file instead of describing them.

You're vibe coding fast.
But something's off.

Speed hides the real problem — you don't know which prompts are wasting your time.

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73%

of developers have no idea how their prompts actually perform

No score. No signal. Just the next session.

~30%

of token spend is wasted on vague, over-injected prompts

Burning budget with no visibility into why.

0

tools give you a score on your vibe coding performance

Until now.

How Prism works.

Runs automatically as each goal wraps up.
No interruptions while you code.

01

You prompt.
Claude codes.

Prism logs every prompt silently in the background.

Recording session…
02

A goal
wraps up.

Topic shifts, or you /clear — Prism closes the sub-session.

47prompts
89ktokens
2h 14mduration
11files changed
03

Prism scores
the sub-session.

One question: did it hit the goal without rework?

Goal complete No rework
34 of 39 sub-sessions crushed
04

Your report
arrives.

Score, grade, and the one thing to fix next.

87 B+
Prism Score ↑ 6 vs last week

"Context bottleneck — use @file references instead of describing where files live."

Personal — free forever

Your tokens are leaking.
Prism shows you exactly where.

See the exact prompt that burned your tokens.

Turn-by-turn replay with Prism annotations — see where the goal drifted, why it took extra turns, and what to write instead.

Same plan. More output.

Better prompting means fewer correction turns — and less of your Claude plan burned on wasted tokens. Same subscription. More done.

Know which prompting habit is holding you back.

Every sub-session is graded across Clarity, Context, Verification and Workflow. Prism surfaces one bottleneck at a time — and what to write instead.

See what throttling actually costs you.

Hours lost to weekly limits, counted. Prism shows which days you stalled and which prompts burned the budget that got you there.

Session replayauth-refactor · sub-session 3 of 7
T01
"Fix the payment service"
! No file, no expected behavior — Claude had to guess.
T02
"The payment function is failing, check the error handling"
~ Correction turn. Still no file path or reproduction step.
T03
"In /src/payment.ts, processPayment() throws TypeError when amount is null — fix with null guard"
Specific and scoped. Landed in one turn.
C
Not crushed — the goal landed, but two correction turns got you there. Weakest area: Clarity. Name the file and what "fixed" looks like.

Illustrative example — sample sub-session, not customer data.

Token efficiencyBefore vs after Prism
−33%
fewer tokens for the same output
About $73 a month back — on the same Claude plan
Before plan used in 3 weeks
94%
After Prism same output, less waste
61%

Prism traced the waste to one rubric category. Fixed in a single DIV cycle.

Illustrative example — sample figures, not customer results.

Prompt rubricThis week · average grade
Clarity Is the goal concrete, and is the task scoped? 72
Context Describing where files live instead of pointing at them 58
Verification Tests, expected output, or success criteria given 88
Workflow Plan turn before code on anything non-trivial 76

Illustrative example — sample figures, not customer results.

Throttle impactLast 4 weeks
17.5h
lost to weekly limits, last 4 weeks
Roughly two working days you never got back
When you stalled
MTWTF Lost
Feb 16 3.5h
Feb 23 4.0h
Mar 2 8.5h
Mar 9 1.5h

Mar 9 is the first week after Prism flagged the retry storms. Fewer wasted turns, fewer days at the ceiling.

Illustrative example — sample figures, not customer results.

New — Team plan

Your team codes with AI every day.
Nobody can tell you how well.

Four screens that turn scattered sessions into one view — where the team is strong, where it's stuck, and where the spend actually goes.

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Overview — where to look first.

Every number is shown against last week, and risk signals link straight to the detail behind them. This week's priority is on screen before you go looking for it.

Performance — what the team worked on.

Which areas the team touched, alongside merged PRs and review turnaround. Per-developer reads are written as coaching, not scoring — the question they answer is who needs support, and with what.

Usage & Cost — where the money went.

The same task on a different model costs very different amounts. Prism names the specific waste and what fixing it would save. Not "you used a lot" — here, this much.

Reports — the weekly report, with receipts.

What happened this week in plain language, organised around what changed. Export to PDF or Markdown for the management report.

Overview All teams · This week

Core has slipped two weeks running.

Core 61 Needs a look
Platform 70 Steady
Infra 73 Steady
Data 76 Healthy
Growth 81 Healthy
Core team · where the week went
payments/ 46%
auth/ 31%
tests/ 23%
@chen Scopes prompts to a file and a behaviour Skips verification on small diffs
One task · three models“Add a null guard to processPayment() and a unit test”
$0.12
Haiku 4.5
$0.41
Sonnet 5
$1.90
Opus 4.8
Routine test scaffolding still running on Opus −$180/mo
Weekly report Aug 31 – Sep 6 · 14 developers

Token spend fell 34.9% while prompt quality held.

Completed23/ 31
Period cost$2,014
Prompt score60.6B
Shipped this week 23 tasks
Payment regression suite widened@chen · Refactor
Retry policy coverage extended@chen · Feature
Audit log masking verified@sunwoo · Feature

Never a basis for performance reviews or personnel decisions.

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Prism is not a surveillance tool.
The design makes sure of it.

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