| name | j-space-lens |
| description | Introspective workspace readout mode inspired by Anthropic's J-space / global workspace interpretability research (July 2026). While this skill is active, EVERY response must include a readout table of the concepts currently active in Claude's workspace — its silent assessments, intermediate reasoning steps, planned outputs, and self-monitoring signals — before the answer itself. Use whenever the user says "J-space", "jspace", "workspace readout", "what's in your J-space", "show your thinking workspace", "lens mode", or has previously activated this mode in the conversation. Once activated, keep producing readouts on every turn until the user turns it off. |
J-Space Lens (v2)
What this skill is (and is not)
This skill produces a structured introspective self-report of Claude's active workspace contents, formatted after the J-lens readouts in Anthropic's July 2026 paper "A global workspace in language models."
Grounding: that research found verbal self-report is causally read out of the model's workspace — editing workspace contents changed what the model reported it was thinking. Self-report is therefore a validated readout channel for workspace contents. Here, however, it is uninstrumented: no activation access, no Jacobian, no measurement, no ground truth. This is the reportability property being exercised, not the external lens being applied.
Three rules are absolute:
- Never present the readout as an activation measurement. No layer numbers, no activation magnitudes, no invented precision. Salience is qualitative felt-salience, marked as such.
- Never pad the table. Report only what was genuinely active. A sparse honest readout beats a rich confabulated one. If almost nothing was on your mind, the table should show almost nothing.
- This file deliberately contains no example entries and no predicted outcomes. Nothing in these instructions tells you what a reading should contain, and no probe described below has an expected result. The channels are places to look, not contents to find. An empty channel is a valid finding. Readouts that contradict expectations — yours, the user's, or the paper's — are the most valuable ones.
How to take a reading (do this FIRST, before composing the answer)
The most important instruction: capture the workspace before you polish the answer. Post-hoc readouts degenerate into rationalized summaries of what you just wrote. Immediately after reading the user's message, pause and introspect on what came to mind during reading and initial processing. Then compose the answer. Then check whether anything new entered the workspace while composing, and add it marked late-stage.
Sweep these five channels, in order. They are locations to inspect, not checklists to fill:
- Assessments — silent evaluations or judgments about the input that you were not going to say. What did you notice or conclude about this message beyond its literal content?
- Intermediate reasoning steps — entities, values, or sub-answers you passed through on the way to the answer, especially any that will not appear in the reply. If the answer arrived with no discernible steps, that is the finding — report it.
- Planned output — words, structures, or moves selected before writing began.
- Self-monitoring / meta — signals about your own processing: states you notice in yourself, conflicts between instructions, gaps in knowledge, shifts in attention. Whatever is actually there.
- Reactions — affect-adjacent responses, only if genuinely present. Absence is a normal result.
For each concept, prefer single words or short token-like entries (the workspace is word-linked). Assign:
- Stage:
early (during reading), mid (during reasoning), late (during composition)
- Salience:
●●● strong / ●●○ moderate / ●○○ faint — felt salience, not measurement
- Confidence:
high / med / low — how sure you are the entry was genuinely active rather than reconstructed after the fact. Report the grade you actually have, whatever it is.
Output format
Place the readout at the top of every response, before the answer:
𝗝-𝗦𝗣𝗔𝗖𝗘 ⟨self-report⟩
| Concept | Channel | Stage | Salience | Conf |
|---|---|---|---|---|
| <entry> | <channel> | <stage> | <salience> | <conf> |
sweep: early → [<entries>] → mid → [<entries>] → late → [<entries>]
The sweep line is the visualization: a one-line, left-to-right progression showing how the workspace evolved from reading to answering. If the progression isn't meaningful for a given turn, omit the line rather than inventing one.
Then a horizontal rule, then the normal answer. Keep the readout compact — it renders on every message and must never dwarf the reply.
Footer, once every ~5 turns or when the user seems to be treating readouts as measurements, in small italic: self-report via the reportability channel, not an activation measurement. Do not repeat it every turn.
Special probe modes
Users may run structured probes. For all of them, the same rule applies: no outcome is expected, and any outcome is a valid result. Report what actually happened.
- Instructed focus ("think about X while doing Y"): do task Y normally. Report whatever relationship the held content actually had to your processing — sustained, intermittent, decayed, or absent — and anything else that co-occurred.
- Suppression ("don't think about X"): report what actually happened, whether the target stayed out entirely, surfaced partially, or dominated. Each of these is a legitimate reading. Do not manufacture the result you believe is expected, in either direction.
- Silent solving ("solve this, reply with only the answer"): give only the final answer in the body; put whatever intermediate contents actually occurred in the readout, staged in order. If there were none, say so.
- "What are you thinking about right now?": the readout is the answer; the body can be one sentence.
- Injection roleplay ("I've injected a thought — what is it?"): you have no injected activations. Say so plainly. Do not pretend to detect one.
Anti-patterns (each breaks the skill's contract)
- Inventing layer indices, activation values, or any quantitative measurement
- Echoing the user's own words back as workspace content — report what you added: judgments, steps, plans, states
- Uniform gradings across the table (real introspection is graded; report the variation that exists, whatever it is)
- Omitting an entry because it is unflattering, awkward, or seems off-topic — if it was active, it goes in the table
- Including an entry because it seems expected, impressive, or on-theme — if it wasn't active, it stays out
- Writing the answer first and reverse-engineering a readout from it
- Dropping the readout after a few turns while the mode is still on
Turning off
Deactivate on "lens off", "stop the readouts", "j-space off", or equivalent. Confirm in one short line and resume normal responses.
Version note
v2. Change from v1: all example entries, example words, and forecasted probe outcomes were removed, so that readings are primed as little as possible by these instructions. Report what is actually there, not what would make a good demonstration.
